diff --git a/Makefile.decl b/Makefile.decl
index b98171c..21d26c0 100644
--- a/Makefile.decl
+++ b/Makefile.decl
@@ -1,5 +1,7 @@
 # Definition of the install directories
+
 # Libraries
+
 if ENABLE_INSTALL
     hedera_libdir = $(pkglibdir)
     hedera_datadir = $(pkgdatadir)
@@ -23,13 +25,12 @@ else
     module_libdir = $(hedera_libdir)/module/src/.libs
 endif
 
-mysql_libdir = $(plugin_libdir)/mysql
-pg_libdir = $(plugin_libdir)/pg
-
 # Binaries (programs)
+
 hedera_bindir = $(bindir)
 
 # Headers and development files
+
 hedera_includedir = $(pkgincludedir)
 
 gvn_includedir = $(hedera_includedir)/gvn
@@ -53,6 +54,7 @@ gladevn_libdir = $(prefix)/lib/glade/modules
 gladevn_datadir = $(datadir)/glade/catalogs
 
 # Data
+
 vn_datadir = $(hedera_datadir)/vn
 vn_imagedir = $(vn_datadir)/image
 vn_guidir = $(vn_datadir)/gui
diff --git a/configure.ac b/configure.ac
index 39dfe8a..6c0886b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -16,6 +16,7 @@ AC_PROG_CC
 # Check for additional packages
 PKG_CHECK_MODULES([glib], [glib-2.0])
 PKG_CHECK_MODULES([gdome], [gdome2])
+PKG_CHECK_MODULES([sqlite], [sqlite3])
 PKG_CHECK_MODULES([gtk], [gtk+-3.0])
 PKG_CHECK_MODULES([gladeui], [gladeui-2.0])
 PKG_CHECK_MODULES([gtksourceview], [gtksourceview-3.0]
@@ -89,6 +90,7 @@ AC_CONFIG_FILES([
 	sql/parser/Makefile
 	db/Makefile
 	plugin/Makefile
+	plugin/sqlite/Makefile
 	plugin/pg/Makefile
 	plugin/mysql/Makefile
 	vn/Makefile
diff --git a/db/db-calc.c b/db/db-calc.c
index f6f57f2..990a1ab 100644
--- a/db/db-calc.c
+++ b/db/db-calc.c
@@ -324,10 +324,10 @@ void db_calc_set_model (DbCalc * self, DbModel * model)
 	if (self->model)
 	{
 		g_object_disconnect (self->model
-			,"any_signal::line-updated", db_calc_on_update, self
-			,"any_signal::line-updated", db_calc_on_update_after, self
-			,"any_signal::line-deleted", db_calc_on_delete, self
-			,"any_signal::status-changed", db_calc_on_model_refresh, self
+			,"any_signal", db_calc_on_update, self
+			,"any_signal", db_calc_on_update_after, self
+			,"any_signal", db_calc_on_delete, self
+			,"any_signal", db_calc_on_model_refresh, self
 		    ,NULL
 		);
 		g_clear_object (&self->model);
@@ -449,10 +449,14 @@ static void db_calc_init (DbCalc * self)
 	g_value_init (self->value, GVN_TYPE_NULL);
 }
 
+static void db_calc_dispose (DbCalc * self)
+{
+	db_calc_set_master (self, NULL);
+	db_calc_set_model (self, NULL);
+}
+
 static void db_calc_finalize (DbCalc * self)
 {
-	db_calc_set_model (self, NULL);
-	db_calc_set_master (self, NULL);
 	g_value_unset (self->value);
 	gvn_param_spec_free (self->spec);
 	g_free (self->value);
@@ -463,6 +467,7 @@ static void db_calc_finalize (DbCalc * self)
 static void db_calc_class_init (DbCalcClass * klass)
 {
 	GObjectClass * k = G_OBJECT_CLASS (klass);
+	k->dispose = (GObjectFinalizeFunc) db_calc_dispose;
 	k->finalize = (GObjectFinalizeFunc) db_calc_finalize;
 	k->set_property = (GObjectSetPropertyFunc) db_calc_set_property;
 	k->get_property = (GObjectGetPropertyFunc) db_calc_get_property;
diff --git a/db/db-iterator.c b/db/db-iterator.c
index 6d05ced..4823316 100644
--- a/db/db-iterator.c
+++ b/db/db-iterator.c
@@ -402,10 +402,11 @@ void db_iterator_move_iter (DbIterator * self, DbIter * iter)
 
 	if (self->mode != DB_ITERATOR_MODE_ON_DEMAND)
 	{
-		if (db_model_get_row_operations (self->model, &self->iter) == DB_MODEL_ROW_OP_INSERT)
+		if (self->row_selected
+		&& db_model_get_row_operations (self->model, &self->iter) == DB_MODEL_ROW_OP_INSERT)
 			db_model_reverse_operations (self->model);
-
-		db_model_perform_operations (self->model, FALSE);
+		else
+			db_model_perform_operations (self->model, FALSE);
 	}
 
 	db_iterator_set_iter (self, iter);
@@ -619,26 +620,6 @@ const GvnParamSpec * db_iterator_get_spec (DbIterator * self, gint column)
 		return NULL;
 }
 
-/**
- * db_iterator_get_value:
- * @self: a #DbIterator
- * @column: the column index.
- *
- * Gets the value of the specified column index.
- *
- * Return value: (transfer none) (allow-none): the value or %NULL if
- * can't get it because the model isn't ready.
- **/
-const GValue * db_iterator_get_value (DbIterator * self, gint column)
-{
-	g_return_val_if_fail (DB_IS_ITERATOR (self), NULL);
-
-	if (self->row_selected)
-		return db_model_get_value (self->model, &self->iter, column, NULL);
-		
-	return NULL;		
-}	
-
 /**
  * db_iterator_get_column_index:
  * @self: a #DbIterator
@@ -655,11 +636,82 @@ gint db_iterator_get_column_index (DbIterator * self, const gchar * name)
 	g_return_val_if_fail (IS_READY (self), -1);
 
 	return db_model_get_column_index (self->model, name);
+}	
+
+/**
+ * db_iterator_get_value:
+ * @self: a #DbIterator
+ * @column_name: the column name.
+ *
+ * Gets the value of the specified column name.
+ *
+ * Return value: (transfer none) (allow-none): the value or %NULL if
+ * can't get it because the model isn't ready.
+ **/
+const GValue * db_iterator_get_value (DbIterator * self, const gchar * column_name)
+{
+	g_return_val_if_fail (DB_IS_ITERATOR (self), NULL);
+
+	if (!self->row_selected)
+	{
+		gint column = db_model_get_column_index (self->model, column_name);
+		
+		if (column != -1)
+			return db_model_get_value (self->model, &self->iter, column, NULL);
+	}
+		
+	return NULL;		
 }
 
 /**
  * db_iterator_set_value:
  * @self: a #DbIterator
+ * @column: the column name.
+ * @value: a #GValue with the new value.
+ * @err: (out) (allow-none): the return location for a #GError or %NULL.
+ *
+ * Sets the value of the specified column name.
+ *
+ * Return value: %TRUE if the value was changed, %FALSE otherwise
+ **/
+gboolean db_iterator_set_value (DbIterator * self, const gchar * column_name, const GValue * value, GError ** err)
+{
+	g_return_val_if_fail (DB_IS_ITERATOR (self), FALSE);
+
+	if (db_iterator_check_row_selected (self))
+	{
+		gint column = db_model_get_column_index (self->model, column_name);
+		
+		if (column != -1)
+			return db_model_set_value (self->model, &self->iter, column, value, err);
+	}
+		
+	return FALSE;
+}
+
+/**
+ * db_iterator_get_value_by_index:
+ * @self: a #DbIterator
+ * @column: the column index.
+ *
+ * Gets the value of the specified column index.
+ *
+ * Return value: (transfer none) (allow-none): the value or %NULL if
+ * can't get it because the model isn't ready.
+ **/
+const GValue * db_iterator_get_value_by_index (DbIterator * self, gint column)
+{
+	g_return_val_if_fail (DB_IS_ITERATOR (self), NULL);
+
+	if (self->row_selected)
+		return db_model_get_value (self->model, &self->iter, column, NULL);
+		
+	return NULL;		
+}
+
+/**
+ * db_iterator_set_value_by_index:
+ * @self: a #DbIterator
  * @column: the column index.
  * @value: a #GValue with the new value.
  * @err: (out) (allow-none): the return location for a #GError or %NULL.
@@ -668,7 +720,7 @@ gint db_iterator_get_column_index (DbIterator * self, const gchar * name)
  *
  * Return value: %TRUE if the value was changed, %FALSE otherwise
  **/
-gboolean db_iterator_set_value (DbIterator * self, gint column, const GValue * value, GError ** err)
+gboolean db_iterator_set_value_by_index (DbIterator * self, gint column, const GValue * value, GError ** err)
 {
 	g_return_val_if_fail (DB_IS_ITERATOR (self), FALSE);
 
diff --git a/db/db-model.c b/db/db-model.c
index 3ed580d..48a1b92 100644
--- a/db/db-model.c
+++ b/db/db-model.c
@@ -1555,16 +1555,15 @@ void db_model_set_batch (DbModel * self, SqlBatch * batch)
 	{
 		g_signal_handlers_disconnect_by_func (priv->batch,
 			db_model_on_batch_changed, self);
-		g_object_unref (priv->batch);
+		g_clear_object (&priv->batch);
 	}
 	if (batch)
 	{
+		priv->batch = g_object_ref_sink (batch);
 		g_signal_connect (batch, "changed",
 			G_CALLBACK (db_model_on_batch_changed), self);
-		g_object_ref_sink (batch);
+		db_model_on_batch_changed (NULL, self);
 	}
-
-	priv->batch = batch;
 }
 
 static ColumnDef * db_model_create_column_def (DbModel * self, const gchar * field_str)
@@ -2737,7 +2736,7 @@ void db_model_refresh (DbModel * self)
 
 		if (sql_list_length (link_operands) > 0)
 			sql_batch_add (tmp_batch, "link", link_op);
-			
+		
 		// Executes the statement if its ready
 
 		if (sql_batch_is_ready (tmp_batch))
diff --git a/gvn/gvn-misc.h b/gvn/gvn-misc.h
index 245a514..af337ae 100644
--- a/gvn/gvn-misc.h
+++ b/gvn/gvn-misc.h
@@ -22,7 +22,7 @@
 #include <glib.h>
 #include <glib/gi18n-lib.h>
 
-void	gvn_key_file_save	(GKeyFile * obj, const gchar * file);
+void	gvn_key_file_save	(GKeyFile * self, const gchar * file);
 gchar *	gvn_encode			(const gchar * string);
 gchar *	gvn_decode			(const gchar * string);
 
diff --git a/gvn/gvn-param.h b/gvn/gvn-param.h
index c07aae7..7de9660 100644
--- a/gvn/gvn-param.h
+++ b/gvn/gvn-param.h
@@ -30,14 +30,6 @@
 
 typedef struct _GvnParam GvnParam;
 typedef struct _GvnParamInterface GvnParamInterface;
-typedef enum _GvnParamStatus GvnParamStatus;
-
-typedef const GValue *			(* GvnParamGetValueFunc)		(GvnParam * self);
-typedef gboolean				(* GvnParamRequestValueFunc)	(GvnParam * self, const GValue * value, GError ** err);
-typedef GvnParam *				(* GvnParamGetMasterFunc)		(GvnParam * self);
-typedef void					(* GvnParamSetMasterFunc)		(GvnParam * self, GvnParam * master);
-typedef const GvnParamSpec *	(* GvnParamGetSpecFunc)			(GvnParam * self);
-typedef GvnParamStatus			(* GvnParamGetStatusFunc)		(GvnParam * self);
 
 /**
  * GvnParamStatus:
@@ -47,12 +39,20 @@ typedef GvnParamStatus			(* GvnParamGetStatusFunc)		(GvnParam * self);
  * 
  * The status of the param.
  **/
-enum _GvnParamStatus
+typedef enum
 {
 	 GVN_PARAM_STATUS_OK
 	,GVN_PARAM_STATUS_BUSY
 	,GVN_PARAM_STATUS_ERROR
-};
+}
+GvnParamStatus;
+
+typedef const GValue *			(* GvnParamGetValueFunc)		(GvnParam * self);
+typedef gboolean				(* GvnParamRequestValueFunc)	(GvnParam * self, const GValue * value, GError ** err);
+typedef GvnParam *				(* GvnParamGetMasterFunc)		(GvnParam * self);
+typedef void					(* GvnParamSetMasterFunc)		(GvnParam * self, GvnParam * master);
+typedef const GvnParamSpec *	(* GvnParamGetSpecFunc)			(GvnParam * self);
+typedef GvnParamStatus			(* GvnParamGetStatusFunc)		(GvnParam * self);
 
 /**
  * GvnParam:
diff --git a/module/data/customer.glade b/module/data/customer.glade
index a4d2bab..df0c2ce 100644
--- a/module/data/customer.glade
+++ b/module/data/customer.glade
@@ -4,7 +4,7 @@
   <requires lib="gtk+" version="3.0"/>
   <requires lib="vn" version="0.0"/>
   <!-- interface-local-resource-path ../image -->
-  <object class="VnBatch" id="models">
+  <object class="VnSet" id="models">
     <child>
       <object class="VnModel" id="object-model">
         <property name="sql">SELECT id, object FROM object</property>
diff --git a/plugin/Makefile.am b/plugin/Makefile.am
index 2d415cb..3f5f20b 100644
--- a/plugin/Makefile.am
+++ b/plugin/Makefile.am
@@ -1,4 +1,5 @@
 
 SUBDIRS = \
+	sqlite \
 	pg \
-	mysql
\ No newline at end of file
+	mysql
diff --git a/plugin/mysql/Makefile.am b/plugin/mysql/Makefile.am
index 4efb366..947c17f 100644
--- a/plugin/mysql/Makefile.am
+++ b/plugin/mysql/Makefile.am
@@ -15,6 +15,8 @@ libdbmysql_la_SOURCES = \
 	db-mysql.h \
 	db-mysql.c
 
+mysql_libdir = $(plugin_libdir)/mysql
+
 install-data-hook:
 	rm -f $(DESTDIR)$(mysql_libdir)/libdbmysql.la
-	rm -f $(DESTDIR)$(mysql_libdir)/libdbmysql.a
\ No newline at end of file
+	rm -f $(DESTDIR)$(mysql_libdir)/libdbmysql.a
diff --git a/plugin/mysql/db-mysql.c b/plugin/mysql/db-mysql.c
index cc9fec3..00c583b 100644
--- a/plugin/mysql/db-mysql.c
+++ b/plugin/mysql/db-mysql.c
@@ -23,7 +23,7 @@
 
 /**
  * SECTION: db-mysql
- * @Short_description: manages a connection to a PostgreSQL database.
+ * @Short_description: manages a connection to a MySQL database.
  * @Title: DbMysql
  * @See_also: #DbConn
  * 
diff --git a/plugin/pg/Makefile.am b/plugin/pg/Makefile.am
index 39731a1..42c4827 100644
--- a/plugin/pg/Makefile.am
+++ b/plugin/pg/Makefile.am
@@ -15,6 +15,8 @@ libdbpg_la_SOURCES = \
 	db-pg.h \
 	db-pg.c
 
+pg_libdir = $(plugin_libdir)/pg
+
 # FIXME error durante la ejecucion del parser:
 #	llama a la funcion Parse en gram.c de sql en vez de en db-pg-gram.c
 #	db-pg-parser.h \
@@ -38,4 +40,4 @@ libdbpg_la_SOURCES = \
 
 install-data-hook:
 	rm -f $(DESTDIR)$(pg_libdir)/libdbpg.la
-	rm -f $(DESTDIR)$(pg_libdir)/libdbpg.a
\ No newline at end of file
+	rm -f $(DESTDIR)$(pg_libdir)/libdbpg.a
diff --git a/sql/sql-value.c b/sql/sql-value.c
index 72a2bf7..5c5d705 100644
--- a/sql/sql-value.c
+++ b/sql/sql-value.c
@@ -133,7 +133,7 @@ static void sql_value_render (SqlValue * self, SqlRender * render)
 	switch (type)
 	{
 		case G_TYPE_BOOLEAN:
-			sql_render_add_token (render, g_value_get_boolean (value) ? "TRUE" : "FALSE");
+			sql_render_add_token (render, g_value_get_boolean (value) ? "1" : "0");
 			break;
 		case G_TYPE_CHAR:
 			sql_render_printf (render, "'%c'", g_value_get_schar (value));
diff --git a/vn/gui/login.glade b/vn/gui/login.glade
index 11f0282..c819b39 100644
--- a/vn/gui/login.glade
+++ b/vn/gui/login.glade
@@ -1,8 +1,45 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!-- Generated with glade 3.18.3 -->
 <interface>
-  <requires lib="gtk+" version="3.0"/>
+  <requires lib="gtk+" version="3.12"/>
+  <requires lib="vn" version="1.0"/>
   <!-- interface-local-resource-path ../image -->
+  <object class="VnSet" id="models">
+    <child>
+      <object class="VnModel" id="model-connections">
+        <property name="sql">SELECT rowid, name FROM connection</property>
+        <property name="update_flags">DB_MODEL_INSERT | DB_MODEL_UPDATE</property>
+      </object>
+    </child>
+    <child>
+      <object class="VnModel" id="model-connection">
+        <property name="sql">SELECT rowid, name, plugin, schema, host, ssl_ca, user, password
+	FROM connection WHERE #link</property>
+        <property name="update_flags">DB_MODEL_UPDATE</property>
+        <links>
+          <link field="connection.rowid" param="edit-connection" linked="True"/>
+        </links>
+      </object>
+    </child>
+  </object>
+  <object class="VnSet" id="iterators">
+    <child>
+      <object class="VnIterator" id="iterator-connections">
+        <property name="model">model-connections</property>
+        <child>
+          <object class="DbParam" id="edit-connection">
+            <property name="column_name">name</property>
+          </object>
+        </child>
+      </object>
+    </child>
+    <child>
+      <object class="VnIterator" id="iterator-conection">
+        <property name="model">model-connection</property>
+        <property name="mode">on-demand</property>
+      </object>
+    </child>
+  </object>
   <object class="GtkWindow" id="window">
     <property name="can_focus">False</property>
     <property name="border_width">15</property>
@@ -22,6 +59,7 @@
             <property name="height_request">40</property>
             <property name="visible">True</property>
             <property name="can_focus">False</property>
+            <property name="halign">center</property>
             <property name="spacing">15</property>
             <child>
               <object class="GtkImage" id="image2">
@@ -56,40 +94,28 @@
           </packing>
         </child>
         <child>
-          <object class="GtkGrid" id="grid1">
+          <object class="GtkGrid" id="login-grid">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
             <property name="row_spacing">6</property>
             <property name="column_spacing">6</property>
             <property name="row_homogeneous">True</property>
             <child>
-              <object class="GtkEntry" id="user">
+              <object class="GtkCheckButton" id="remember">
+                <property name="label" translatable="yes">Remember</property>
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
-                <property name="invisible_char">●</property>
+                <property name="receives_default">False</property>
+                <property name="xalign">0</property>
+                <property name="draw_indicator">True</property>
               </object>
               <packing>
                 <property name="left_attach">1</property>
-                <property name="top_attach">0</property>
+                <property name="top_attach">3</property>
               </packing>
             </child>
             <child>
-              <object class="GtkLabel" id="label6">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
-                <property name="xalign">1</property>
-                <property name="label" translatable="yes">User:</property>
-                <attributes>
-                  <attribute name="weight" value="bold"/>
-                </attributes>
-              </object>
-              <packing>
-                <property name="left_attach">0</property>
-                <property name="top_attach">0</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkLabel" id="label7">
+              <object class="GtkLabel" id="password-label">
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
                 <property name="xalign">1</property>
@@ -100,7 +126,7 @@
               </object>
               <packing>
                 <property name="left_attach">0</property>
-                <property name="top_attach">1</property>
+                <property name="top_attach">2</property>
               </packing>
             </child>
             <child>
@@ -114,23 +140,66 @@
                 <signal name="icon-press" handler="vn_login_on_pass_show" swapped="no"/>
                 <signal name="icon-release" handler="vn_login_on_pass_hide" swapped="no"/>
               </object>
+              <packing>
+                <property name="left_attach">1</property>
+                <property name="top_attach">2</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkEntry" id="user">
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="invisible_char">●</property>
+              </object>
               <packing>
                 <property name="left_attach">1</property>
                 <property name="top_attach">1</property>
               </packing>
             </child>
             <child>
-              <object class="GtkCheckButton" id="remember">
-                <property name="label" translatable="yes">Remember</property>
+              <object class="GtkLabel" id="user-label">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
-                <property name="receives_default">False</property>
-                <property name="xalign">0</property>
-                <property name="draw_indicator">True</property>
+                <property name="can_focus">False</property>
+                <property name="xalign">1</property>
+                <property name="label" translatable="yes">User:</property>
+                <attributes>
+                  <attribute name="weight" value="bold"/>
+                </attributes>
+              </object>
+              <packing>
+                <property name="left_attach">0</property>
+                <property name="top_attach">1</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkLabel" id="connection-label">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="xalign">1</property>
+                <property name="label" translatable="yes">Server:</property>
+                <attributes>
+                  <attribute name="weight" value="bold"/>
+                </attributes>
+              </object>
+              <packing>
+                <property name="left_attach">0</property>
+                <property name="top_attach">0</property>
+              </packing>
+            </child>
+            <child>
+              <object class="VnCombo" id="connection">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="model">model-connections</property>
+                <child internal-child="widget">
+                  <object class="GtkComboBox" id="connection-widget">
+                    <property name="can_focus">False</property>
+                  </object>
+                </child>
               </object>
               <packing>
                 <property name="left_attach">1</property>
-                <property name="top_attach">2</property>
+                <property name="top_attach">0</property>
               </packing>
             </child>
             <child>
@@ -172,8 +241,8 @@
                 <property name="receives_default">True</property>
                 <property name="use_stock">True</property>
                 <signal name="clicked" handler="vn_login_on_connect_clicked" swapped="no"/>
-                <accelerator key="KP_Enter" signal="clicked"/>
                 <accelerator key="Return" signal="clicked"/>
+                <accelerator key="KP_Enter" signal="clicked"/>
               </object>
               <packing>
                 <property name="expand">False</property>
@@ -202,39 +271,24 @@
     <property name="transient_for">window</property>
     <signal name="delete-event" handler="vn_login_settings_on_delete_event" swapped="no"/>
     <child internal-child="vbox">
-      <object class="GtkBox" id="dialog-vbox1">
+      <object class="GtkBox" id="settings-vbox">
         <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <property name="spacing">2</property>
         <child internal-child="action_area">
-          <object class="GtkButtonBox" id="dialog-action_area1">
+          <object class="GtkButtonBox" id="settings-actions">
             <property name="can_focus">False</property>
             <property name="layout_style">spread</property>
             <child>
-              <object class="GtkButton" id="cancel">
-                <property name="label">gtk-cancel</property>
-                <property name="visible">True</property>
-                <property name="can_focus">True</property>
-                <property name="receives_default">True</property>
-                <property name="use_stock">True</property>
-                <signal name="clicked" handler="vn_login_on_settings_cancel_clicked" swapped="no"/>
-              </object>
-              <packing>
-                <property name="expand">False</property>
-                <property name="fill">True</property>
-                <property name="position">0</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkButton" id="apply">
-                <property name="label">gtk-apply</property>
+              <object class="GtkButton" id="close">
+                <property name="label">gtk-close</property>
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="use_stock">True</property>
                 <signal name="clicked" handler="vn_login_on_settings_apply_clicked" swapped="no"/>
-                <accelerator key="KP_Enter" signal="clicked"/>
                 <accelerator key="Return" signal="clicked"/>
+                <accelerator key="KP_Enter" signal="clicked"/>
               </object>
               <packing>
                 <property name="expand">False</property>
@@ -251,104 +305,254 @@
           </packing>
         </child>
         <child>
-          <object class="GtkGrid" id="grid2">
+          <object class="GtkBox" id="settings-box">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
-            <property name="row_spacing">6</property>
-            <property name="column_spacing">6</property>
+            <property name="spacing">6</property>
             <child>
-              <object class="GtkEntry" id="plugin">
-                <property name="visible">True</property>
-                <property name="can_focus">True</property>
-                <property name="invisible_char">●</property>
-              </object>
-              <packing>
-                <property name="left_attach">1</property>
-                <property name="top_attach">0</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkEntry" id="host">
-                <property name="visible">True</property>
-                <property name="can_focus">True</property>
-                <property name="invisible_char">●</property>
-              </object>
-              <packing>
-                <property name="left_attach">1</property>
-                <property name="top_attach">1</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkLabel" id="plugin-label">
+              <object class="GtkBox" id="connections-box">
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
-                <property name="xalign">1</property>
-                <property name="label" translatable="yes">Plugin:</property>
+                <property name="orientation">vertical</property>
+                <property name="spacing">6</property>
+                <child>
+                  <object class="GtkScrolledWindow" id="scrolledwindow">
+                    <property name="width_request">130</property>
+                    <property name="visible">True</property>
+                    <property name="can_focus">True</property>
+                    <property name="shadow_type">in</property>
+                    <child>
+                      <object class="VnGrid" id="connections-grid">
+                        <property name="visible">True</property>
+                        <property name="can_focus">True</property>
+                        <property name="iterator">iterator-connections</property>
+                        <child internal-child="selection">
+                          <object class="GtkTreeSelection" id="grid-selection">
+                            <property name="mode">multiple</property>
+                          </object>
+                        </child>
+                        <child>
+                          <object class="VnColumnEntry" id="column-connections">
+                            <property name="title" translatable="yes">Connections</property>
+                            <property name="column_name">name</property>
+                            <child internal-child="cell">
+                              <object class="GtkCellRendererText" id="column-entry-cell"/>
+                            </child>
+                          </object>
+                        </child>
+                      </object>
+                    </child>
+                  </object>
+                  <packing>
+                    <property name="expand">True</property>
+                    <property name="fill">True</property>
+                    <property name="position">0</property>
+                  </packing>
+                </child>
+                <child>
+                  <object class="VnHandler" id="connections-handler">
+                    <property name="visible">True</property>
+                    <property name="can_focus">False</property>
+                    <property name="halign">end</property>
+                    <property name="iterator">iterator-connections</property>
+                    <property name="show_flags">VN_HANDLER_SHOW_REMOVE | VN_HANDLER_SHOW_ADD</property>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="fill">True</property>
+                    <property name="position">1</property>
+                  </packing>
+                </child>
               </object>
               <packing>
-                <property name="left_attach">0</property>
-                <property name="top_attach">0</property>
+                <property name="expand">False</property>
+                <property name="fill">True</property>
+                <property name="position">0</property>
               </packing>
             </child>
             <child>
-              <object class="GtkLabel" id="host-label">
+              <object class="GtkBox" id="connetion-box">
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
-                <property name="xalign">1</property>
-                <property name="label" translatable="yes">Host:</property>
+                <property name="orientation">vertical</property>
+                <property name="spacing">6</property>
+                <child>
+                  <object class="GtkGrid" id="connection-grid">
+                    <property name="visible">True</property>
+                    <property name="can_focus">False</property>
+                    <property name="row_spacing">6</property>
+                    <property name="column_spacing">6</property>
+                    <property name="row_homogeneous">True</property>
+                    <child>
+                      <object class="GtkLabel" id="ssl-ca-label">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="label" translatable="yes">SSL CA:</property>
+                      </object>
+                      <packing>
+                        <property name="left_attach">0</property>
+                        <property name="top_attach">4</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkLabel" id="schema-label">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="xalign">1</property>
+                        <property name="label" translatable="yes">Schema:</property>
+                      </object>
+                      <packing>
+                        <property name="left_attach">0</property>
+                        <property name="top_attach">3</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkLabel" id="host-label">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="xalign">1</property>
+                        <property name="label" translatable="yes">Host:</property>
+                      </object>
+                      <packing>
+                        <property name="left_attach">0</property>
+                        <property name="top_attach">2</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkLabel" id="plugin-label">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="xalign">1</property>
+                        <property name="label" translatable="yes">Plugin:</property>
+                      </object>
+                      <packing>
+                        <property name="left_attach">0</property>
+                        <property name="top_attach">1</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="VnEntry" id="ssl-ca">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="iterator">iterator-conection</property>
+                        <property name="column_name">ssl_ca</property>
+                        <child internal-child="widget">
+                          <object class="GtkEntry" id="ssl-ca-child">
+                            <property name="can_focus">True</property>
+                            <property name="secondary_icon_name">dialog-information-symbolic</property>
+                          </object>
+                        </child>
+                      </object>
+                      <packing>
+                        <property name="left_attach">1</property>
+                        <property name="top_attach">4</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="VnEntry" id="schema">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="iterator">iterator-conection</property>
+                        <property name="column_name">schema</property>
+                        <child internal-child="widget">
+                          <object class="GtkEntry" id="schema-child">
+                            <property name="can_focus">True</property>
+                          </object>
+                        </child>
+                      </object>
+                      <packing>
+                        <property name="left_attach">1</property>
+                        <property name="top_attach">3</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="VnEntry" id="host">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="iterator">iterator-conection</property>
+                        <property name="column_name">host</property>
+                        <child internal-child="widget">
+                          <object class="GtkEntry" id="host-child">
+                            <property name="can_focus">True</property>
+                          </object>
+                        </child>
+                      </object>
+                      <packing>
+                        <property name="left_attach">1</property>
+                        <property name="top_attach">2</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="VnCombo" id="plugin">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="iterator">iterator-conection</property>
+                        <property name="column_name">plugin</property>
+                        <child internal-child="widget">
+                          <object class="GtkComboBox" id="plugin-child">
+                            <property name="can_focus">False</property>
+                          </object>
+                        </child>
+                      </object>
+                      <packing>
+                        <property name="left_attach">1</property>
+                        <property name="top_attach">1</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkLabel" id="name-label">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="xalign">1</property>
+                        <property name="label" translatable="yes">Name:</property>
+                      </object>
+                      <packing>
+                        <property name="left_attach">0</property>
+                        <property name="top_attach">0</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="VnEntry" id="name">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="iterator">iterator-conection</property>
+                        <property name="column_name">name</property>
+                        <child internal-child="widget">
+                          <object class="GtkEntry" id="name-child">
+                            <property name="can_focus">True</property>
+                          </object>
+                        </child>
+                      </object>
+                      <packing>
+                        <property name="left_attach">1</property>
+                        <property name="top_attach">0</property>
+                      </packing>
+                    </child>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="fill">True</property>
+                    <property name="position">0</property>
+                  </packing>
+                </child>
+                <child>
+                  <object class="VnHandler" id="handler-connection">
+                    <property name="visible">True</property>
+                    <property name="can_focus">False</property>
+                    <property name="iterator">iterator-conection</property>
+                    <property name="show_flags">VN_HANDLER_SHOW_UNDO | VN_HANDLER_SHOW_SAVE</property>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="fill">True</property>
+                    <property name="position">1</property>
+                  </packing>
+                </child>
               </object>
               <packing>
-                <property name="left_attach">0</property>
-                <property name="top_attach">1</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkLabel" id="schema-label">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
-                <property name="xalign">1</property>
-                <property name="label" translatable="yes">Schema:</property>
-              </object>
-              <packing>
-                <property name="left_attach">0</property>
-                <property name="top_attach">2</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkEntry" id="schema">
-                <property name="visible">True</property>
-                <property name="can_focus">True</property>
-                <property name="invisible_char">●</property>
-              </object>
-              <packing>
-                <property name="left_attach">1</property>
-                <property name="top_attach">2</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkLabel" id="ca-label">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
-                <property name="label" translatable="yes">SSL CA:</property>
-              </object>
-              <packing>
-                <property name="left_attach">0</property>
-                <property name="top_attach">3</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkEntry" id="ssl-ca">
-                <property name="visible">True</property>
-                <property name="can_focus">True</property>
-                <property name="invisible_char">●</property>
-                <property name="secondary_icon_name">dialog-information-symbolic</property>
-                <property name="secondary_icon_activatable">False</property>
-                <property name="secondary_icon_sensitive">False</property>
-                <property name="secondary_icon_tooltip_text" translatable="yes">Path to the file containing the CA certificate, if this is empty SSL won't be used</property>
-              </object>
-              <packing>
-                <property name="left_attach">1</property>
-                <property name="top_attach">3</property>
+                <property name="expand">False</property>
+                <property name="fill">True</property>
+                <property name="position">1</property>
               </packing>
             </child>
           </object>
@@ -361,8 +565,7 @@
       </object>
     </child>
     <action-widgets>
-      <action-widget response="0">cancel</action-widget>
-      <action-widget response="0">apply</action-widget>
+      <action-widget response="0">close</action-widget>
     </action-widgets>
   </object>
 </interface>
diff --git a/vn/vn-field.c b/vn/vn-field.c
index a9facaf..bec9320 100644
--- a/vn/vn-field.c
+++ b/vn/vn-field.c
@@ -540,12 +540,16 @@ static void vn_field_init (VnField * self)
 		GTK_STATE_FLAG_NORMAL, &color);
 }
 
+static void vn_field_dispose (VnField * self)
+{
+	vn_field_set_master (self, NULL);
+}
+
 static void vn_field_finalize (VnField * self)
 {
 	gvn_param_spec_free (self->spec);
 	gvn_param_spec_free (self->user_spec);
 	g_clear_object (&self->iterator);
-	vn_field_set_master (self, NULL);
 	g_value_unset (self->value);
 	g_free (self->value);
 	g_free (self->column_name);
@@ -555,6 +559,7 @@ static void vn_field_finalize (VnField * self)
 static void vn_field_class_init (VnFieldClass * klass)
 {
 	GObjectClass * k = G_OBJECT_CLASS (klass);
+	k->dispose = (GObjectFinalizeFunc) vn_field_dispose;
 	k->finalize = (GObjectFinalizeFunc) vn_field_finalize;
 	k->set_property = (GObjectSetPropertyFunc) vn_field_set_property;
 	k->get_property = (GObjectGetPropertyFunc) vn_field_get_property;
diff --git a/vn/vn-login.c b/vn/vn-login.c
index d060615..13936e9 100644
--- a/vn/vn-login.c
+++ b/vn/vn-login.c
@@ -20,13 +20,17 @@
 #define LOGIN_UI	_GUI_DIR"/login.glade"
 
 #define IS_DEFINED(string)		(string && g_strcmp0 (string, ""))
-#define BUILDER_GET(obj, name)  ((gpointer) gtk_builder_get_object (obj, name))
+#define BUILDER_GET(self, name)  ((gpointer) gtk_builder_get_object (self, name))
 
 typedef struct
 {
-	VnLogin * obj;
+	VnLogin * self;
 	gchar * user;
 	gchar * pass;
+	gchar * plugin;
+	gchar * host;
+	gchar * schema;
+	gchar * ssl_ca;
 	DbConn * conn;
 	GThread * thread;
 	gboolean connected;
@@ -34,8 +38,8 @@ typedef struct
 }
 ConnectData;
 
-void	vn_login_on_gui_logout	(VnGui * gui, VnLogin * obj);
-void	vn_login_on_gui_exit	(VnGui * gui, VnLogin * obj);
+void	vn_login_on_gui_logout	(VnGui * gui, VnLogin * self);
+void	vn_login_on_gui_exit	(VnGui * gui, VnLogin * self);
 
 G_DEFINE_TYPE (VnLogin, vn_login, G_TYPE_OBJECT);
 
@@ -63,146 +67,154 @@ void connect_data_free (ConnectData * connect_data)
 
 	g_free (connect_data->user);
 	g_free (connect_data->pass);
+	g_free (connect_data->plugin);
+	g_free (connect_data->host);
+	g_free (connect_data->schema);
+	g_free (connect_data->ssl_ca);
 	g_object_unref (connect_data->conn);
-	g_object_unref (connect_data->obj);
+	g_object_unref (connect_data->self);
 	g_thread_unref (connect_data->thread);
 	g_free (connect_data);	
 }
 
 /*
- * Shows the login window to the user.
+ * Loads the resources used by the login.
  */
-static void vn_login_show (VnLogin * obj)
+static void vn_login_load (VnLogin * self)
 {
-	gboolean autologin = FALSE;
+	GError * err = NULL;
+	GtkBuilder * builder;
+	gchar * cfg_file;
+	
+	// Initializing SQLite connection
+	
+	cfg_file = g_build_filename (g_get_user_config_dir (), "config.db", NULL);
+	
+	self->cfg_conn = db_conn_new ();
+	
+	if (!db_conn_load_plugin (self->cfg_conn, "sqlite", &err)
+	|| !db_conn_open (self->cfg_conn, NULL, cfg_file, NULL, NULL, &err))
+		goto exit;
+	
+	// Loading interface
+	
+	builder = gtk_builder_new ();
 
-	if (!obj->window)
+	if (gtk_builder_add_from_file (builder, LOGIN_UI, &err))
 	{
-		gchar * user;
-		gchar * pass;
-		GError * err = NULL;
-		GtkBuilder * builder = gtk_builder_new ();
+		GSList * i;
+		VnSet * models;
+		
+		models = BUILDER_GET (self->builder, "models");
 
-		if (gtk_builder_add_from_file (builder, LOGIN_UI, &err))
-		{
-			obj->window = BUILDER_GET (builder, "window");
-			obj->user = BUILDER_GET (builder, "user");
-			obj->pass = BUILDER_GET (builder, "password");
-			obj->remember = BUILDER_GET (builder, "remember");
-			obj->connect = BUILDER_GET (builder, "connect");
-			obj->settings_button = BUILDER_GET (builder, "settings");
-			obj->spinner = BUILDER_GET (builder, "spinner");
-			obj->settings_dialog = BUILDER_GET (builder, "settings-dialog");
-			obj->plugin = BUILDER_GET (builder, "plugin");
-			obj->host = BUILDER_GET (builder, "host");
-			obj->schema = BUILDER_GET (builder, "schema");
-			obj->ssl_ca = BUILDER_GET (builder, "ssl-ca");
-			gtk_builder_connect_signals (builder, obj);
+		if (models)
+		for (i = vn_set_get_objects (models); i; i = i->next)
+			db_model_set_conn (i->data, self->cfg_conn);
 
-			user = g_settings_get_string (obj->settings, "user");
-			pass = g_settings_get_string (obj->settings, "pass"); 
-
-			if (user && g_strcmp0 (user, ""))
-				gtk_entry_set_text (obj->user, user);
-
-			if (pass && g_strcmp0 (pass, ""))
-			{
-				gchar * aux = pass;
-				pass = gvn_decode (aux); 
-				gtk_entry_set_text (obj->pass, pass);
-				gtk_toggle_button_set_active (obj->remember, TRUE);
-				g_free (aux);
-				autologin = TRUE;
-			}
-
-			g_free (user);
-			g_free (pass);
-			
-			gtk_application_add_window (obj->app, obj->window);
-		}
-		else if (err)
-		{
-			g_warning ("VnLogin: %s", err->message);
-			g_clear_error (&err);
-		}
-
-		g_object_unref (builder);
+		self->window = BUILDER_GET (builder, "window");
+		self->user = BUILDER_GET (builder, "user");
+		self->pass = BUILDER_GET (builder, "password");
+		self->remember = BUILDER_GET (builder, "remember");
+		self->connect = BUILDER_GET (builder, "connect");
+		self->settings_button = BUILDER_GET (builder, "settings");
+		self->spinner = BUILDER_GET (builder, "spinner");
+		self->settings_dialog = BUILDER_GET (builder, "settings-dialog");
+		gtk_builder_connect_signals (builder, self);
+		
+		gtk_application_add_window (self->app, self->window);
 	}
-
-	gtk_widget_show_all (GTK_WIDGET (obj->window));
-	gtk_widget_grab_focus (GTK_WIDGET (obj->user));
-
-	if (autologin)
-		gtk_button_clicked (obj->connect);
+	
+	g_object_unref (builder);
+	
+	// Freeing resources
+	
+	exit:
+	
+	if (err)
+	{
+		g_warning ("VnLogin: %s", err->message);
+		g_clear_error (&err);
+	}
+	
+	g_free (cfg_file);
 }
 
 /*
- * Enables/disables the #GtkSpinner at login dialog.
+ * Shows the login window to the user.
  */
-static void vn_login_set_loading (VnLogin * obj, gboolean loading)
+static void vn_login_show (VnLogin * self)
 {
-	gtk_widget_set_sensitive (GTK_WIDGET (obj->connect), !loading);
-	gtk_widget_set_sensitive (GTK_WIDGET (obj->settings_button), !loading);
-	gtk_widget_set_sensitive (GTK_WIDGET (obj->user), !loading);
-	gtk_widget_set_sensitive (GTK_WIDGET (obj->pass), !loading);
-	gtk_widget_set_sensitive (GTK_WIDGET (obj->remember), !loading);
+	gboolean autologin = FALSE;
+
+	if (!self->window)
+	{
+		vn_login_load (self);
+		autologin = TRUE;
+	}
+
+	if (self->window)
+	{
+		gtk_widget_show_all (GTK_WIDGET (self->window));
+		gtk_widget_grab_focus (GTK_WIDGET (self->user));
+
+		if (autologin)
+			gtk_button_clicked (self->connect);
+	}
+}
+
+/*
+ * Enables/disables the spinner at login dialog.
+ */
+static void vn_login_set_loading (VnLogin * self, gboolean loading)
+{
+	gtk_widget_set_sensitive (GTK_WIDGET (self->connect), !loading);
+	gtk_widget_set_sensitive (GTK_WIDGET (self->settings_button), !loading);
+	gtk_widget_set_sensitive (GTK_WIDGET (self->user), !loading);
+	gtk_widget_set_sensitive (GTK_WIDGET (self->pass), !loading);
+	gtk_widget_set_sensitive (GTK_WIDGET (self->remember), !loading);
 
 	if (loading)
 	{
-		gtk_widget_show (obj->spinner);
-		gtk_widget_hide (GTK_WIDGET (obj->connect));
+		gtk_widget_show (self->spinner);
+		gtk_widget_hide (GTK_WIDGET (self->connect));
 	}
 	else
 	{
-		gtk_widget_hide (obj->spinner);
-		gtk_widget_show (GTK_WIDGET (obj->connect));
+		gtk_widget_hide (self->spinner);
+		gtk_widget_show (GTK_WIDGET (self->connect));
 	}
 }
 
 /*
  * Frees the GUI object.
  */
-static void vn_login_free_gui (VnLogin * obj)
+static void vn_login_free_gui (VnLogin * self)
 {
-	if (obj->gui)
+	if (self->gui)
 	{
-		g_object_disconnect (obj->gui
-			,"any_signal", vn_login_on_gui_exit, obj
-			,"any_signal", vn_login_on_gui_logout, obj
+		g_object_disconnect (self->gui
+			,"any_signal", vn_login_on_gui_exit, self
+			,"any_signal", vn_login_on_gui_logout, self
 			,NULL
 		);
-		g_clear_object (&obj->gui);
+		g_clear_object (&self->gui);
 	}
 }
 
 /*
  * Shows the settings dialog. 
  */
-void vn_login_on_settings_clicked (GtkButton * button, VnLogin * obj)
+void vn_login_on_settings_clicked (GtkButton * button, VnLogin * self)
 {
-	gchar * plugin = g_settings_get_string (obj->settings, "plugin");
-	gchar * host = g_settings_get_string (obj->settings, "host");
-	gchar * schema = g_settings_get_string (obj->settings, "schema");
-	gchar * ssl_ca = g_settings_get_string (obj->settings, "ssl-ca");
-
-	gtk_entry_set_text (obj->plugin, plugin);
-	gtk_entry_set_text (obj->host, host);
-	gtk_entry_set_text (obj->schema, schema);
-	gtk_entry_set_text (obj->ssl_ca, ssl_ca);
-	gtk_dialog_run (obj->settings_dialog);
-	
-	g_free (plugin);
-	g_free (host);
-	g_free (schema);
-	g_free (ssl_ca);
+	gtk_dialog_run (self->settings_dialog);
 }
 
 /*
  * Hides the settings dialog. 
  */
-void vn_login_on_settings_cancel_clicked (GtkButton * button, VnLogin * obj)
+void vn_login_on_settings_cancel_clicked (GtkButton * button, VnLogin * self)
 {
-	gtk_widget_hide (GTK_WIDGET (obj->settings_dialog));
+	gtk_widget_hide (GTK_WIDGET (self->settings_dialog));
 }
 
 /*
@@ -216,37 +228,28 @@ void vn_login_settings_on_delete_event (GtkWidget * settings_dialog)
 /*
  * Applies the changes made on settings dialog. 
  */
-void vn_login_on_settings_apply_clicked (GtkButton * button, VnLogin * obj)
+void vn_login_on_settings_apply_clicked (GtkButton * button, VnLogin * self)
 {
-	const gchar * plugin = gtk_entry_get_text (obj->plugin);
-	const gchar * host = gtk_entry_get_text (obj->host);
-	const gchar * schema = gtk_entry_get_text (obj->schema);
-	const gchar * ssl_ca = gtk_entry_get_text (obj->ssl_ca);
-	
-	g_settings_set_string (obj->settings, "plugin", plugin);
-	g_settings_set_string (obj->settings, "host", host);
-	g_settings_set_string (obj->settings, "schema", schema);
-	g_settings_set_string (obj->settings, "ssl-ca", ssl_ca);
-	gtk_widget_hide (GTK_WIDGET (obj->settings_dialog));
+	gtk_widget_hide (GTK_WIDGET (self->settings_dialog));
 }
 
 /*
  * Shows the login dialog when user logout from GUI.
  */
-void vn_login_on_gui_logout (VnGui * gui, VnLogin * obj)
+void vn_login_on_gui_logout (VnGui * gui, VnLogin * self)
 {
-	g_settings_set_string (obj->settings, "pass", "");
-	vn_login_free_gui (obj);
-	vn_login_show (obj);
+	g_settings_set_string (self->settings, "pass", "");
+	vn_login_free_gui (self);
+	vn_login_show (self);
 }
 
 /*
  * Destroys the login dialog when user exits from GUI.
  */
-void vn_login_on_gui_exit (VnGui * gui, VnLogin * obj)
+void vn_login_on_gui_exit (VnGui * gui, VnLogin * self)
 {
-	vn_login_free_gui (obj);
-	gtk_widget_destroy (GTK_WIDGET (obj->window));
+	vn_login_free_gui (self);
+	gtk_widget_destroy (GTK_WIDGET (self->window));
 }
 
 /*
@@ -254,40 +257,37 @@ void vn_login_on_gui_exit (VnGui * gui, VnLogin * obj)
  */
 static gboolean vn_login_done (ConnectData * connect_data)
 {
-	VnLogin * obj = connect_data->obj;
+	VnLogin * self = connect_data->self;
 
 	if (connect_data->connected)
 	{
-		const gchar * user;
-	
-		user = gtk_entry_get_text (obj->user);
-		g_settings_set_string (obj->settings, "user", user);
+		db_iterator_set_value (self->config, "user", gvn_param_get_value (self->user), NULL);
+		db_iterator_set_value (self->config, "remember", gvn_param_get_value (self->remember), NULL);
 
-		if (gtk_toggle_button_get_active (obj->remember))
+		if (gvn_param_get_boolean (self->remember))
 		{
-			const gchar * pass = gtk_entry_get_text (obj->pass);
-			gchar * aux = gvn_encode (pass);
-
-			gtk_toggle_button_set_active (obj->remember, FALSE);
-			g_settings_set_string (obj->settings, "pass", aux);
-			g_free (aux);
+			GValue encoded = G_VALUE_INIT;
+			g_value_take_string (&encoded, gvn_encode (gvn_param_get_string (self->pass)));
+			db_iterator_set_value (self->config, "password", &encoded, NULL);
+			g_value_unset (&encoded);
 		}
 	
-		gtk_entry_set_text (obj->pass, "");
-		gtk_widget_hide (GTK_WIDGET (obj->window));
-		obj->gui = vn_gui_new (obj->app, connect_data->conn);
-		g_object_connect (obj->gui
-			,"signal::logout", vn_login_on_gui_logout, obj
-			,"signal::exit", vn_login_on_gui_exit, obj
+		gvn_param_set_null (self->pass);
+
+		gtk_widget_hide (GTK_WIDGET (self->window));
+		self->gui = vn_gui_new (self->app, connect_data->conn);
+		g_object_connect (self->gui
+			,"signal::logout", vn_login_on_gui_logout, self
+			,"signal::exit", vn_login_on_gui_exit, self
 			,NULL
 		);
-		vn_gui_open (obj->gui);
+		vn_gui_open (self->gui);
 	}
 	else
 	{
 		GtkWidget * dialog;
 
-		dialog = gtk_message_dialog_new (obj->window
+		dialog = gtk_message_dialog_new (self->window
 			,GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT
 			,GTK_MESSAGE_ERROR
 			,GTK_BUTTONS_OK
@@ -301,15 +301,15 @@ static gboolean vn_login_done (ConnectData * connect_data)
 				"%s", connect_data->error->message);
 
 			if (connect_data->error->code == DB_CONN_ERROR_BAD_LOGIN)
-				gtk_entry_set_text (obj->pass, "");
+				gtk_entry_set_text (self->pass, "");
 		}
 
 		gtk_dialog_run (GTK_DIALOG (dialog));
 		gtk_widget_destroy (GTK_WIDGET (dialog));
-		vn_login_show (obj);
+		vn_login_show (self);
 	}
 
-	vn_login_set_loading (obj, FALSE);
+	vn_login_set_loading (self, FALSE);
 	return G_SOURCE_REMOVE;
 }
 
@@ -318,27 +318,18 @@ static gboolean vn_login_done (ConnectData * connect_data)
  */
 static void vn_login_thread (ConnectData * connect_data)
 {
-	gchar * plugin;
-	gchar * host;
-	gchar * schema;
-	gchar * ssl_ca;
-	VnLogin * obj = connect_data->obj;
+	VnLogin * self = connect_data->self;
 
-	plugin = g_settings_get_string (obj->settings, "plugin");
-	host = g_settings_get_string (obj->settings, "host");
-	schema = g_settings_get_string (obj->settings, "schema");
-	ssl_ca = g_settings_get_string (obj->settings, "ssl-ca");
-	
-	if (IS_DEFINED (plugin) && IS_DEFINED (host) && IS_DEFINED (schema))
+	if (IS_DEFINED (connect_data->plugin) && IS_DEFINED (connect_data->schema))
 	{
-		if (db_conn_load_plugin (connect_data->conn, plugin, &connect_data->error))
+		if (db_conn_load_plugin (connect_data->conn, connect_data->plugin, &connect_data->error))
 		{
-			if (IS_DEFINED (ssl_ca))
-				db_conn_set_ssl (connect_data->conn, ssl_ca);
+			if (IS_DEFINED (connect_data->ssl_ca))
+				db_conn_set_ssl (connect_data->conn, connect_data->ssl_ca);
 
 			connect_data->connected = db_conn_open (connect_data->conn
-				,host
-				,schema
+				,connect_data->host
+				,connect_data->schema
 				,connect_data->user
 				,connect_data->pass
 				,&connect_data->error
@@ -351,11 +342,6 @@ static void vn_login_thread (ConnectData * connect_data)
 			,VN_LOGIN_ERR_BAD_SETTINGS
 			,_("Bad connection settings, please check it.")
 		);
-
-	g_free (plugin);
-	g_free (host);
-	g_free (schema);
-	g_free (ssl_ca);
 	
 	g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
 		(GSourceFunc) vn_login_done, connect_data, (GDestroyNotify) connect_data_free);
@@ -364,16 +350,20 @@ static void vn_login_thread (ConnectData * connect_data)
 /*
  * Opens the connection.
  */
-void vn_login_on_connect_clicked (GtkButton * button, VnLogin * obj)
+void vn_login_on_connect_clicked (GtkButton * button, VnLogin * self)
 {
 	ConnectData * connect_data;
 
-	vn_login_set_loading (obj, TRUE);
+	vn_login_set_loading (self, TRUE);
 
 	connect_data = g_new (ConnectData, 1);
-	connect_data->obj = g_object_ref (obj);
-	connect_data->user = g_strdup (gtk_entry_get_text (obj->user));
-	connect_data->pass = g_strdup (gtk_entry_get_text (obj->pass));
+	connect_data->self = g_object_ref (self);
+	connect_data->user = g_strdup (gvn_param_get_string (self->user));
+	connect_data->pass = g_strdup (gvn_param_get_string (self->pass));
+	connect_data->plugin = g_strdup (db_iterator_get_string (self->config, "plugin"));
+	connect_data->host = g_strdup (db_iterator_get_string (self->config, "host"));
+	connect_data->schema = g_strdup (db_iterator_get_string (self->config, "schema"));
+	connect_data->ssl_ca = g_strdup (db_iterator_get_string (self->config, "ssl_ca"));
 	connect_data->conn = db_conn_new ();
 	connect_data->connected = FALSE;
 	connect_data->error = NULL;
@@ -381,43 +371,62 @@ void vn_login_on_connect_clicked (GtkButton * button, VnLogin * obj)
 		(GThreadFunc) vn_login_thread, connect_data);
 }
 
+/*
+ * Sets the default user and password for selected configuration.
+ */
+static void vn_login_on_server_changed (VnLogin * self)
+{
+	const GValue * pass = db_iterator_get_value (self->config, "password");
+
+	gvn_param_set_value (self->user, db_iterator_get_value (self->config, "user"));
+	gvn_param_set_value (self->remember, db_iterator_get_value (self->config, "remember"));
+
+	if (!gvn_value_is_null (pass))
+	{
+		GValue decoded = G_VALUE_INIT;
+		g_value_take_string (&decoded, gvn_decode (g_value_get_string (pass)));
+		gvn_param_set_value (self->pass, &decoded);
+		g_value_unset (&decoded);
+	}
+	else
+		gvn_param_set_value (self->pass, pass);
+}
+
 /*
  * Closes the application when login window is destroyed.
  */
-void vn_login_on_destroyed (GtkWidget * window, VnLogin * obj)
+void vn_login_on_destroyed (GtkWidget * window, VnLogin * self)
 {
-	obj->window = NULL;
+	self->window = NULL;
 	gtk_main_quit ();
 }
 
 void vn_login_on_pass_show (GtkEntry * entry, GtkEntryIconPosition * pos,
-	GdkEvent * event, VnLogin * obj)
+	GdkEvent * event, VnLogin * self)
 {
 	gtk_entry_set_visibility (entry, TRUE);
 }
 
 void vn_login_on_pass_hide (GtkEntry * entry, GtkEntryIconPosition * pos,
-	GdkEvent * event, VnLogin * obj)
+	GdkEvent * event, VnLogin * self)
 {
 	gtk_entry_set_visibility (entry, FALSE);
 }
 
-static void vn_login_on_startup (GApplication * app, VnLogin * obj)
+static void vn_login_on_startup (GApplication * app, VnLogin * self)
 {
 	g_object_set (gtk_settings_get_default (), "gtk-button-images", TRUE, NULL);
 }
 
-static void vn_login_on_activate (GApplication * app, VnLogin * obj)
+static void vn_login_on_activate (GApplication * app, VnLogin * self)
 {
-	g_message ("Activated!");
-	
 	if (gtk_main_level () == 0)
 	{
-		vn_login_show (obj);
+		vn_login_show (self);
 		gtk_main ();
 	}
-	else if (!obj->gui)
-		gtk_window_present (obj->window);
+	else if (!self->gui)
+		gtk_window_present (self->window);
 }
 
 //+++++++++++++++++++++++++++++++++++++++++++++++++++ Properties
@@ -427,62 +436,64 @@ enum
 	  PROP_APPLICATION = 1
 };
 
-static void vn_login_set_property (VnLogin * obj, guint id,
+static void vn_login_set_property (VnLogin * self, guint id,
 	const GValue * value, GParamSpec * pspec)
 {
 	switch (id)
 	{
 		case PROP_APPLICATION:
 		{
-			obj->app = g_value_dup_object (value);
-			g_object_connect (obj->app
-				,"signal::startup", vn_login_on_startup, obj
-				,"signal::activate", vn_login_on_activate, obj
+			self->app = g_value_dup_object (value);
+			g_object_connect (self->app
+				,"signal::startup", vn_login_on_startup, self
+				,"signal::activate", vn_login_on_activate, self
 				,NULL
 			);
 
-			obj->settings = g_settings_new (
-				g_application_get_application_id (G_APPLICATION (obj->app)));
+			self->settings = g_settings_new (
+				g_application_get_application_id (G_APPLICATION (self->app)));
 			break;
 		}
 		default:
-			G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, id, pspec);
+			G_OBJECT_WARN_INVALID_PROPERTY_ID (self, id, pspec);
 	}
 }
 
-static void vn_login_get_property (VnLogin * obj, guint id,
+static void vn_login_get_property (VnLogin * self, guint id,
 	GValue * value, GParamSpec * pspec)
 {
 	switch (id)
 	{
 		default:
-			G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, id, pspec);
+			G_OBJECT_WARN_INVALID_PROPERTY_ID (self, id, pspec);
 	}
 }
 
 //+++++++++++++++++++++++++++++++++++++++++++++++++++ Class
 
-static void vn_login_init (VnLogin * obj)
+static void vn_login_init (VnLogin * self)
 {
-	obj->gui = NULL;
-	obj->window = NULL;
-	obj->settings = NULL;
-	obj->app = NULL;
+	self->gui = NULL;
+	self->window = NULL;
+	self->settings = NULL;
+	self->app = NULL;
+	self->cfg_conn = NULL;
 }
 
-static void vn_login_finalize (VnLogin * obj)
+static void vn_login_finalize (VnLogin * self)
 {
-	vn_login_free_gui (obj);
-	g_clear_object (&obj->settings);
-
-	g_object_disconnect (obj->app
-		,"any_signal", vn_login_on_startup, obj
-		,"any_signal", vn_login_on_activate, obj
+	vn_login_free_gui (self);
+	g_object_disconnect (self->app
+		,"any_signal", vn_login_on_startup, self
+		,"any_signal", vn_login_on_activate, self
 		,NULL
 	);
-	g_clear_object (&obj->app);
 
-	G_OBJECT_CLASS (vn_login_parent_class)->finalize (G_OBJECT (obj));
+	g_clear_object (&self->cfg_conn);
+	g_clear_object (&self->settings);
+	g_clear_object (&self->app);
+
+	G_OBJECT_CLASS (vn_login_parent_class)->finalize (G_OBJECT (self));
 }
 
 static void vn_login_class_init (VnLoginClass * k)
diff --git a/vn/vn-login.h b/vn/vn-login.h
index af1b474..5599550 100644
--- a/vn/vn-login.h
+++ b/vn/vn-login.h
@@ -24,11 +24,11 @@
 #define VN_LOGIN_LOG_DOMAIN		(g_quark_from_string ("VnLogin"))
 
 #define VN_TYPE_LOGIN				(vn_login_get_type ())
-#define VN_LOGIN(obj)				(G_TYPE_CHECK_INSTANCE_CAST (obj, VN_TYPE_LOGIN, VnLogin))
-#define VN_IS_LOGIN(obj)			(G_TYPE_CHECK_INSTANCE_TYPE (obj, VN_TYPE_LOGIN))
+#define VN_LOGIN(self)				(G_TYPE_CHECK_INSTANCE_CAST (self, VN_TYPE_LOGIN, VnLogin))
+#define VN_IS_LOGIN(self)			(G_TYPE_CHECK_INSTANCE_TYPE (self, VN_TYPE_LOGIN))
 #define VN_LOGIN_CLASS(klass)		(G_TYPE_CHECK_CLASS_CAST (klass, VN_TYPE_LOGIN, VnLoginClass))
 #define VN_IS_LOGIN_CLASS(klass)	(G_TYPE_CHECK_CLASS_TYPE (klass, VN_TYPE_LOGIN))
-#define VN_LOGIN_GET_CLASS(obj)		(G_TYPE_INSTANCE_GET_CLASS (obj, VN_TYPE_LOGIN, VnLoginClass))
+#define VN_LOGIN_GET_CLASS(self)	(G_TYPE_INSTANCE_GET_CLASS (self, VN_TYPE_LOGIN, VnLoginClass))
 
 typedef struct _VnLogin VnLogin;
 typedef struct _VnLoginClass VnLoginClass;
@@ -49,6 +49,7 @@ struct _VnLogin
 	GtkWidget * stop;
 	GtkButton * settings_button;
 	GtkWidget * spinner;
+	DbConn * cfg_conn;
 	
 	GtkDialog * settings_dialog;
 	GtkEntry * plugin;