diff --git a/anjuta/hedera/src/form.vala b/anjuta/hedera/src/form.vala
index f3eccfa..178be8a 100644
--- a/anjuta/hedera/src/form.vala
+++ b/anjuta/hedera/src/form.vala
@@ -14,8 +14,7 @@ public class Vn.[+FormClassName+] : Vn.Form
 		
 	}
 
-	// Main routine of the [+FormClassName+] Form.
-	public override void open (Gtk.Builder builder)
+	public override void open ()
 	{
 		
 	}
diff --git a/anjuta/hedera/src/mod.vala b/anjuta/hedera/src/mod.vala
index 1db86d8..ead89c4 100644
--- a/anjuta/hedera/src/mod.vala
+++ b/anjuta/hedera/src/mod.vala
@@ -14,7 +14,6 @@ public class Vn.[+ClassName+] : Vn.Mod
 		
 	}
 
-	// Main routine of the [+ClassName+] Module.
 	public override void activate ()
 	{
 		
diff --git a/glade/Makefile.am b/glade/Makefile.am
index 9a48bd9..df17d6a 100644
--- a/glade/Makefile.am
+++ b/glade/Makefile.am
@@ -15,7 +15,7 @@ libgladevn_la_LDFLAGS = -avoid-version
 libgladevn_la_SOURCES = \
 	glade-vn.h \
 	glade-vn.c \
-	glade-vn-batch.c \
+	glade-vn-set.c \
 	glade-db-model.c \
 	glade-db-model-editor.h \
 	glade-db-model-editor.c \
diff --git a/glade/glade-db-model.c b/glade/glade-db-model.c
index 95966e7..2a2648c 100644
--- a/glade/glade-db-model.c
+++ b/glade/glade-db-model.c
@@ -683,6 +683,7 @@ static void glade_list_eprop_create_input (GladeListEProp * obj, GtkWidget * box
 	gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scroll), GTK_SHADOW_IN);
 	gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scroll),
 		GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
+	g_object_set (G_OBJECT (scroll), "height-request", 50, NULL);
 	gtk_box_pack_start (GTK_BOX (box), scroll, TRUE, TRUE, 0);
 
 	obj->view = GTK_TREE_VIEW (gtk_tree_view_new ());
@@ -747,7 +748,7 @@ void glade_db_model_write_widget (GladeWidgetAdaptor * adaptor,
 	glade_property_write (prop, context, node);
 
 	GWA_GET_CLASS (G_TYPE_OBJECT)->write_widget (adaptor, widget, context, node);
-//FIXME
+
 	prop = glade_widget_get_property (widget, "links");
 //  Custom tag for the "links" property, e.g.:
 //  <links>
@@ -794,7 +795,7 @@ void glade_db_model_write_widget (GladeWidgetAdaptor * adaptor,
 	}
 	
 	prop = glade_widget_get_property (widget, "batch");
-//  Custom tag for the "links" property, e.g.:
+//  Custom tag for the "batch" property, e.g.:
 //  <batch>
 //		<holder id="name" param="param1"/>
 //  </batch>
diff --git a/glade/glade-eprop-model.c b/glade/glade-eprop-model.c
index c2a6126..52bbf05 100644
--- a/glade/glade-eprop-model.c
+++ b/glade/glade-eprop-model.c
@@ -55,18 +55,18 @@ static void glade_eprop_model_name_changed (GladeProject * project,
 static GladeWidget * glade_model_create (GladeProperty * prop)
 {
 	gboolean use = FALSE;
-	VnBatch * batch;
+	VnSet * batch;
 	GladeWidget * batch_w;
 	GladeProject * project = glade_widget_get_project (glade_property_get_widget (prop));
 	const GList * l, * n, * objects = glade_project_get_objects (project);
 
 	for (n = objects; n; n = n->next)
-	if (VN_IS_BATCH (n->data))
+	if (VN_IS_SET (n->data))
 	{
 		batch = n->data;
 		use = TRUE;
 
-		for (l = vn_batch_get_objects (batch); l; l = l->next)
+		for (l = vn_set_get_objects (batch); l; l = l->next)
 		if (!DB_IS_MODEL (l->data))
 		{
 			use = FALSE;
@@ -80,7 +80,7 @@ static GladeWidget * glade_model_create (GladeProperty * prop)
 	if (!use)
 	{
 		batch_w = glade_command_create
-			(glade_widget_adaptor_get_by_type (VN_TYPE_BATCH), NULL, NULL, project);
+			(glade_widget_adaptor_get_by_type (VN_TYPE_SET), NULL, NULL, project);
 		glade_widget_set_name (batch_w, "models");
 	}
 	else
@@ -92,72 +92,59 @@ static GladeWidget * glade_model_create (GladeProperty * prop)
 
 /*
  * glade_eprop_model_show_dialog:
- * @button:(allow-none): a #GtkButton or @NULL
- * @object: a #GladeEditorPropery or a #GladeWidget
+ * @button:(allow-none): a #GtkButton
+ * @eprop: a #GladeEditorPropery
  * 
- * Opens a dialog to edit a #DbModel.
- * Can be called by a #GladeEditorProperty or by the "edit" action of a
- * #GladeWidgetAdaptor directly (in which case @button is %NULL and @obj is a
- * #GladeWidget).
+ * Opens the dialog to edit the properties of a #DbModel.
  **/
-static void glade_eprop_model_show_dialog (GtkButton * button, GObject * object)
+static void glade_eprop_model_show_dialog (GtkButton * button, GladeEditorProperty * eprop)
 {
 	gboolean created = FALSE;
-	GObject * o;
 	GtkWidget * box;
 	GtkDialog * dialog;
 	GladeWidget * widget;
 	GladeWidgetAdaptor * adaptor;
 	GladeEditable * editor;
-	GladeProperty * p = NULL;
-	GladeEditorProperty * eprop = NULL;
+	GladeProperty * p = glade_editor_property_get_property (eprop);
+	GObject * o = g_value_get_object (glade_property_inline_value (p));
 
-	if (GLADE_IS_EDITOR_PROPERTY (object))
+	if (o && DB_IS_MODEL (o))
+		widget = glade_widget_get_from_gobject (o);
+	else
 	{
-		eprop = GLADE_EDITOR_PROPERTY (object);
-		p = glade_editor_property_get_property (eprop);
-		o = g_value_get_object (glade_property_inline_value (p));
+		GValue val = G_VALUE_INIT;
 
-		if (o && DB_IS_MODEL (o))
-			widget = glade_widget_get_from_gobject (o);
-		else
+		glade_command_push_group
+			(_("Create and set a model for a DbModelHolder"));
+
+		widget = glade_model_create (p);
+		created = TRUE;
+		g_value_init (&val, DB_TYPE_MODEL);
+		g_value_set_object (&val, glade_widget_get_object (widget));
+		glade_command_set_property_value (p, &val);
+		g_value_unset (&val);
+
+		glade_command_pop_group ();
+
+		glade_project_selection_set (glade_widget_get_project (widget),
+			glade_widget_get_object (glade_property_get_widget (p)),
+			TRUE);
+
+		if (!GLADE_EPROP_MODEL (eprop)->connected)
 		{
-			GValue val = G_VALUE_INIT;
-
-			glade_command_push_group
-				(_("Create and set a model for a DbModelHolder"));
-
-			widget = glade_model_create (p);
-			created = TRUE;
-			g_value_init (&val, DB_TYPE_MODEL);
-			g_value_set_object (&val, glade_widget_get_object (widget));
-			glade_command_set_property_value (p, &val);
-			g_value_unset (&val);
-
-			glade_command_pop_group ();
-
-			glade_project_selection_set (glade_widget_get_project (widget),
-				glade_widget_get_object (glade_property_get_widget (p)),
-				TRUE);
-
-			if (!GLADE_EPROP_MODEL (eprop)->connected)
-			{
-				g_signal_connect (glade_widget_get_project
-					(glade_property_get_widget (p)), "widget-name-changed",
-					G_CALLBACK (glade_eprop_model_name_changed), eprop);
-				GLADE_EPROP_MODEL (eprop)->connected = TRUE;
-			}
+			g_signal_connect (glade_widget_get_project
+				(glade_property_get_widget (p)), "widget-name-changed",
+				G_CALLBACK (glade_eprop_model_name_changed), eprop);
+			GLADE_EPROP_MODEL (eprop)->connected = TRUE;
 		}
 	}
-	else
-		widget = GLADE_WIDGET (object);
 
 	adaptor = glade_widget_get_adaptor (widget);
 	editor = glade_widget_adaptor_create_editable (adaptor, GLADE_PAGE_GENERAL);
 	glade_editable_load (editor, widget);
 
 	dialog = GTK_DIALOG (gtk_dialog_new_with_buttons
-		(eprop ? _("Model configuration") : _("Model properties configuration")
+		(_("Model configuration")
 		,GTK_WINDOW (glade_app_get_window ())
 		,GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT
 		,_("OK"),		GTK_RESPONSE_OK
@@ -166,11 +153,7 @@ static void glade_eprop_model_show_dialog (GtkButton * button, GObject * object)
 		,NULL
 	));
 	gtk_dialog_set_default_response (dialog, GTK_RESPONSE_OK);
-	gtk_window_set_default_size (GTK_WINDOW (dialog), 400, 300);
-
-	if (!eprop)
-		gtk_widget_hide (gtk_dialog_get_widget_for_response
-			(dialog, GTK_RESPONSE_REJECT));
+	gtk_window_set_default_size (GTK_WINDOW (dialog), 600, 500);
 
 	box = gtk_alignment_new (0,0,1,1);
 	gtk_alignment_set_padding (GTK_ALIGNMENT (box), 8, 8, 8, 8);
@@ -183,23 +166,15 @@ static void glade_eprop_model_show_dialog (GtkButton * button, GObject * object)
 	{
 		case GTK_RESPONSE_OK:
 		{
-			if (eprop)
-			{
-				gtk_entry_set_text (GTK_ENTRY (GLADE_EPROP_MODEL (eprop)->entry),
-					glade_widget_get_name (widget));
-				GLADE_EPROP_MODEL (eprop)->widget = widget;
-			}
-
+			gtk_entry_set_text (GTK_ENTRY (GLADE_EPROP_MODEL (eprop)->entry),
+				glade_widget_get_name (widget));
+			GLADE_EPROP_MODEL (eprop)->widget = widget;
 			break;
 		}
 		case GTK_RESPONSE_REJECT:
 		{
-			if (eprop)
-			{
-				glade_command_set_property (p, NULL);
-				GLADE_EPROP_MODEL (eprop)->widget = NULL;
-			}
-
+			glade_command_set_property (p, NULL);
+			GLADE_EPROP_MODEL (eprop)->widget = NULL;
 			break;
 		}
 		case GTK_RESPONSE_CANCEL:
@@ -209,8 +184,8 @@ static void glade_eprop_model_show_dialog (GtkButton * button, GObject * object)
 				GList * list = g_list_append (NULL, widget);
 				GladeWidget * batch = glade_widget_get_parent (widget);
 
-				if (vn_batch_get_length
-					VN_BATCH (glade_widget_get_object (batch)) == 1)
+				if (vn_set_get_length
+					VN_SET (glade_widget_get_object (batch)) == 1)
 					list = g_list_prepend (list, batch);
 
 				glade_command_delete (list);
diff --git a/glade/glade-vn-batch.c b/glade/glade-vn-batch.c
index 98d7200..8203e9d 100644
--- a/glade/glade-vn-batch.c
+++ b/glade/glade-vn-batch.c
@@ -17,36 +17,36 @@
 
 #include "glade-vn.h"
 
-void glade_vn_batch_add_child (GladeWidgetAdaptor * adaptor,
-	VnBatch * group, GObject * child)
+void glade_vn_set_add_child (GladeWidgetAdaptor * adaptor,
+	VnSet * group, GObject * child)
 {
 	if (G_IS_OBJECT (child))
-		vn_batch_add (group, child);
+		vn_set_add (group, child);
 }
 
-void glade_vn_batch_remove_child (GladeWidgetAdaptor * adaptor,
-	VnBatch * group, GObject * child)
+void glade_vn_set_remove_child (GladeWidgetAdaptor * adaptor,
+	VnSet * group, GObject * child)
 {
 	if (G_IS_OBJECT (child))
-		vn_batch_remove (group, child);
+		vn_set_remove (group, child);
 }
 
-void glade_vn_batch_replace_child (GladeWidgetAdaptor * adaptor,
+void glade_vn_set_replace_child (GladeWidgetAdaptor * adaptor,
 	GObject * container, GObject * current, GObject * new)
 {
-	VnBatch * group = VN_BATCH (container);
-	glade_vn_batch_remove_child (adaptor, group, current);
-	glade_vn_batch_add_child (adaptor, group, new);
+	VnSet * group = VN_SET (container);
+	glade_vn_set_remove_child (adaptor, group, current);
+	glade_vn_set_add_child (adaptor, group, new);
 }
 
-GList * glade_vn_batch_get_children (GladeWidgetAdaptor * adaptor,
-	VnBatch * group)
+GList * glade_vn_set_get_children (GladeWidgetAdaptor * adaptor,
+	VnSet * group)
 {
-	return vn_batch_get_objects_list (group);
+	return vn_set_get_objects_list (group);
 }
 
-gboolean glade_vn_batch_add_verify (GladeWidgetAdaptor * adaptor,
-	VnBatch * container, GObject * child, gboolean user_feedback)
+gboolean glade_vn_set_add_verify (GladeWidgetAdaptor * adaptor,
+	VnSet * container, GObject * child, gboolean user_feedback)
 {
 	if (G_IS_OBJECT (child))
 		return TRUE;
diff --git a/glade/glade-vn-set.c b/glade/glade-vn-set.c
new file mode 100644
index 0000000..8203e9d
--- /dev/null
+++ b/glade/glade-vn-set.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2013 - Juan Ferrer Toribio
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "glade-vn.h"
+
+void glade_vn_set_add_child (GladeWidgetAdaptor * adaptor,
+	VnSet * group, GObject * child)
+{
+	if (G_IS_OBJECT (child))
+		vn_set_add (group, child);
+}
+
+void glade_vn_set_remove_child (GladeWidgetAdaptor * adaptor,
+	VnSet * group, GObject * child)
+{
+	if (G_IS_OBJECT (child))
+		vn_set_remove (group, child);
+}
+
+void glade_vn_set_replace_child (GladeWidgetAdaptor * adaptor,
+	GObject * container, GObject * current, GObject * new)
+{
+	VnSet * group = VN_SET (container);
+	glade_vn_set_remove_child (adaptor, group, current);
+	glade_vn_set_add_child (adaptor, group, new);
+}
+
+GList * glade_vn_set_get_children (GladeWidgetAdaptor * adaptor,
+	VnSet * group)
+{
+	return vn_set_get_objects_list (group);
+}
+
+gboolean glade_vn_set_add_verify (GladeWidgetAdaptor * adaptor,
+	VnSet * container, GObject * child, gboolean user_feedback)
+{
+	if (G_IS_OBJECT (child))
+		return TRUE;
+
+	if (user_feedback)
+	{
+		GladeWidgetAdaptor * object_adaptor =
+			glade_widget_adaptor_get_by_type (G_TYPE_OBJECT);
+
+		glade_util_ui_message (glade_app_get_window ()
+			,GLADE_UI_INFO
+			,NULL
+			,"Only objects of type %s can be added to objects of type %s."
+			,glade_widget_adaptor_get_name (object_adaptor)
+			,glade_widget_adaptor_get_name (adaptor)
+		);
+	}
+
+	return FALSE;
+}
diff --git a/glade/vn.xml b/glade/vn.xml
index 338a9c6..74d333f 100644
--- a/glade/vn.xml
+++ b/glade/vn.xml
@@ -193,12 +193,12 @@
 		<glade-widget-class name="VnCalendar" generic-name="calendar" title="Date Field" icon-name="widget-gtk-calendar"/>
 		<glade-widget-class name="VnDateChooser" generic-name="date-chooser" title="Date Chooser" icon-name="widget-gtk-calendar"/>
 
-		<glade-widget-class name="VnBatch" generic-name="batch" toplevel="True" title="Group of objects" icon-name="widget-gtk-vbuttonbox">
-			<add-child-function>glade_vn_batch_add_child</add-child-function>
-			<remove-child-function>glade_vn_batch_remove_child</remove-child-function>
-			<replace-child-function>glade_vn_batch_replace_child</replace-child-function>
-			<get-children-function>glade_vn_batch_get_children</get-children-function>
-			<add-child-verify-function>glade_vn_batch_add_verify</add-child-verify-function>
+		<glade-widget-class name="VnSet" generic-name="set" toplevel="True" title="Group of objects" icon-name="widget-gtk-vbuttonbox">
+			<add-child-function>glade_vn_set_add_child</add-child-function>
+			<remove-child-function>glade_vn_set_remove_child</remove-child-function>
+			<replace-child-function>glade_vn_set_replace_child</replace-child-function>
+			<get-children-function>glade_vn_set_get_children</get-children-function>
+			<add-child-verify-function>glade_vn_set_add_verify</add-child-verify-function>
 		</glade-widget-class>
 	</glade-widget-classes>
 
@@ -221,7 +221,7 @@
 	</glade-widget-group>
 
 	<glade-widget-group name="vn-toplevels" title="Data Widgets">
-		<glade-widget-class-ref name="VnBatch"/>
+		<glade-widget-class-ref name="VnSet"/>
 		<glade-widget-class-ref name="VnHandler"/>
 		<glade-widget-class-ref name="VnEntry"/>
 		<glade-widget-class-ref name="VnLabel"/>
diff --git a/vn/Makefile.am b/vn/Makefile.am
index b854054..ad61648 100644
--- a/vn/Makefile.am
+++ b/vn/Makefile.am
@@ -16,6 +16,7 @@ vn_include_HEADERS = \
 	vn-grid-model.h \
 	vn-grid.h \
 	vn-handler.h \
+	vn-set.h \
 	vn-batch.h \
 	field/field.h \
 	column/column.h
@@ -42,7 +43,7 @@ libvn_files = \
 	vn-grid-model.c \
 	vn-grid.c \
 	vn-handler.c \
-	vn-batch.c
+	vn-set.c
 glade_files = \
 	$(top_srcdir)/vn/glade/vn-iterator.h \
 	$(top_srcdir)/vn/glade/vn-iterator.c \
diff --git a/vn/vn-batch.c b/vn/glade/vn-batch.c
similarity index 100%
rename from vn/vn-batch.c
rename to vn/glade/vn-batch.c
diff --git a/vn/vn-batch.h b/vn/glade/vn-batch.h
similarity index 100%
rename from vn/vn-batch.h
rename to vn/glade/vn-batch.h
diff --git a/vn/vn-form.c b/vn/vn-form.c
index 4808173..ef4d042 100644
--- a/vn/vn-form.c
+++ b/vn/vn-form.c
@@ -16,7 +16,7 @@
  */
 
 #include "vn-form.h"
-#include "vn-batch.h"
+#include "vn-set.h"
 
 G_DEFINE_ABSTRACT_TYPE (VnForm, vn_form, GTK_TYPE_ALIGNMENT);
 
@@ -43,15 +43,15 @@ void vn_form_open (VnForm * obj)
 	if (gtk_builder_add_from_file (obj->builder, file, &err))
 	{
 		const GList * m;
-		VnBatch * models = VN_BATCH (gtk_builder_get_object (obj->builder, "models"));
+		VnSet * models = VN_SET (gtk_builder_get_object (obj->builder, "models"));
 
 		if (models)
-		for (m = vn_batch_get_objects (models); m; m = m->next)
+		for (m = vn_set_get_objects (models); m; m = m->next)
 			db_model_set_conn (m->data, obj->conn);
 
 		gtk_builder_connect_signals (obj->builder, obj);
 
-		VN_FORM_GET_CLASS (obj)->open (obj, obj->builder, NULL);
+		VN_FORM_GET_CLASS (obj)->open (obj);
 		gtk_container_add (GTK_CONTAINER (obj), vn_form_get (obj, "main"));
 		gtk_widget_show_all (GTK_WIDGET (obj));
 
diff --git a/vn/vn-form.h b/vn/vn-form.h
index ff9b2ae..a5c43f4 100644
--- a/vn/vn-form.h
+++ b/vn/vn-form.h
@@ -32,8 +32,8 @@ typedef struct _VnFormClass VnFormClass;
 
 typedef GType	(* VnFormGetTypeFunc)		();
 typedef void	(* VnFormOpenFunc)			(VnForm * obj, GtkBuilder * builder, gpointer user_data);
-/*typedef void	(* VnFormActivateFunc)		(VnForm * obj);
-typedef void	(* VnFormDeactivateFunc)	(VnForm * obj);*/
+typedef void	(* VnFormActivateFunc)		(VnForm * obj);
+typedef void	(* VnFormDeactivateFunc)	(VnForm * obj);
 
 struct _VnForm
 {
@@ -57,10 +57,10 @@ struct _VnFormClass
 {
 	GtkAlignmentClass parent;
 	/*< public >*/
-	void					(* open)		(VnForm * obj, GtkBuilder * builder, gpointer user_data);
+	void					(* open)		(VnForm * obj);
 	const GActionEntry *	(* get_actions) (VnForm * obj, gint * size);
-/*	void					(* activate)	(VnForm * obj);
-	void					(* deactivate)	(VnForm * obj);*/
+	void					(* activate)	(VnForm * obj);
+	void					(* deactivate)	(VnForm * obj);
 };
 
 GType					vn_form_get_type			();
diff --git a/vn/vn-set.c b/vn/vn-set.c
new file mode 100644
index 0000000..5cbba4a
--- /dev/null
+++ b/vn/vn-set.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2012 - Juan Ferrer Toribio
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "vn-set.h"
+
+/**
+ * SECTION: vn-set
+ * @Short_description: a group of objects
+ * @Title: VnSet
+ *
+ * A group of GObjects.
+ */
+
+static void vn_set_buildable_interface_init (GtkBuildableIface * iface);
+
+G_DEFINE_TYPE_WITH_CODE (VnSet, vn_set, G_TYPE_OBJECT,
+	G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
+		vn_set_buildable_interface_init)
+);
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++ Methods
+
+/**
+ * vn_set_add:
+ * @obj: a #VnSet
+ * @child: a #GObject
+ * 
+ * Adds a child identified whith @id to the group.
+ **/
+void vn_set_add (VnSet * obj, GObject * child)
+{
+	g_return_if_fail (VN_IS_SET (obj));
+	g_return_if_fail (G_IS_OBJECT (child));
+
+	obj->objects = g_list_prepend (obj->objects, child);
+	obj->count++;
+}
+
+/**
+ * vn_set_remove:
+ * @obj: a #VnSet
+ * @child: a #GObject contained by @obj
+ * 
+ * Removes a child from the group.
+ **/
+void vn_set_remove (VnSet * obj, GObject * child)
+{
+	g_return_if_fail (VN_IS_SET (obj));
+
+	obj->objects = g_list_remove (obj->objects, child);
+	obj->count--;
+}
+
+/**
+ * vn_set_get_objects_list:
+ * @obj: a #VnSet
+ * 
+ * Returns all the #GObject<!-- -->s in @obj, copying the list. This method is
+ * mainly for internal use, use vn_set_get_objects() instead if you don't need
+ * to do further use of the list of objects. 
+ * 
+ * Return value: (transfer container) (element-type GObject): a #GList with all
+ * the objects, that must be freed with #g_list_free
+ **/
+GList * vn_set_get_objects_list (VnSet * obj)
+{
+	g_return_val_if_fail (VN_IS_SET (obj), NULL);
+
+	return g_list_copy (obj->objects);
+}
+
+/**
+ * vn_set_get_objects:
+ * @obj: a #VnSet
+ * 
+ * Returns all the #GObject<!-- -->s in @obj.
+ * 
+ * Return value: (transfer none) (element-type GObject): a #GList with all
+ * the objects, that must not be freed
+ **/
+const GList * vn_set_get_objects (VnSet * obj)
+{
+	g_return_val_if_fail (VN_IS_SET (obj), NULL);
+
+	return obj->objects;
+}
+
+/**
+ * vn_set_get_length:
+ * @obj: a #VnSet
+ * 
+ * Returns the number of childs currently contained in @obj.
+ * 
+ * Return value: the number of childs
+ **/
+guint vn_set_get_length (VnSet * obj)
+{
+	g_return_val_if_fail (VN_IS_SET (obj), 0);
+
+	return obj->count;
+}
+
+static void vn_set_buildable_add_child (GtkBuildable * obj,
+	GtkBuilder * builder, GObject * child, const gchar * type)
+{
+	vn_set_add (VN_SET (obj), child);
+}
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++ Class
+
+static void vn_set_init (VnSet * obj)
+{
+	obj->objects = NULL;
+	obj->count = 0;
+}
+
+static void vn_set_finalize (VnSet * obj)
+{
+	GObjectClass * parent = g_type_class_peek_parent (VN_SET_GET_CLASS (obj));
+
+	g_list_free (obj->objects);
+
+	parent->finalize (G_OBJECT (obj));
+}
+
+static void vn_set_class_init (VnSetClass * klass)
+{
+	GObjectClass * k = G_OBJECT_CLASS (klass);
+	k->finalize = (GObjectFinalizeFunc) vn_set_finalize;
+}
+
+static void vn_set_buildable_interface_init (GtkBuildableIface * iface)
+{
+	iface->add_child = vn_set_buildable_add_child;
+}
diff --git a/vn/vn-set.h b/vn/vn-set.h
new file mode 100644
index 0000000..45c0101
--- /dev/null
+++ b/vn/vn-set.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2012 - Juan Ferrer Toribio
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef VN_SET_H
+#define VN_SET_H
+
+#include <db/db.h>
+#include <gtk/gtk.h>
+
+#define VN_TYPE_SET				(vn_set_get_type ())
+#define VN_SET(obj)				(G_TYPE_CHECK_INSTANCE_CAST (obj, VN_TYPE_SET, VnSet))
+#define VN_IS_SET(obj)			(G_TYPE_CHECK_INSTANCE_TYPE (obj, VN_TYPE_SET))
+#define VN_SET_CLASS(klass)		(G_TYPE_CHECK_CLASS_CAST (klass, VN_TYPE_SET, VnSetClass))
+#define VN_IS_SET_CLASS(klass)	(G_TYPE_CHECK_CLASS_TYPE (klass, VN_TYPE_SET))
+#define VN_SET_GET_CLASS(obj)		(G_TYPE_INSTANCE_GET_CLASS (obj, VN_TYPE_SET, VnSetClass))
+
+typedef struct _VnSet VnSet;
+typedef struct _VnSetClass VnSetClass;
+
+/**
+ * VnSet:
+ * @objects: (element-type GObject):
+ **/
+struct _VnSet
+{
+	GObject parent;
+	GList * objects;
+	guint count;
+};
+
+struct _VnSetClass
+{
+	GObjectClass parent;
+};
+
+GType	vn_set_get_type	();
+
+void			vn_set_add				(VnSet * obj
+											,GObject * child);
+void			vn_set_remove				(VnSet * obj
+											,GObject * child);
+const GList *	vn_set_get_objects		(VnSet * obj);											
+GList *			vn_set_get_objects_list	(VnSet * obj);
+guint			vn_set_get_length			(VnSet * obj);
+
+#endif
\ No newline at end of file
diff --git a/vn/vn.h b/vn/vn.h
index 8e1c125..2d9a0b9 100644
--- a/vn/vn.h
+++ b/vn/vn.h
@@ -27,7 +27,7 @@
 #include "vn-gui.h"
 #include "vn-mod.h"
 #include "vn-form.h"
-#include "vn-batch.h"
+#include "vn-set.h"
 #include "vn-field.h"
 #include "vn-column.h"
 #include "field/field.h"