diff --git a/code/studio/src/plugins/gui_editor/CMakeLists.txt b/code/studio/src/plugins/gui_editor/CMakeLists.txt
index 31d83ae83..f95e6c0a7 100644
--- a/code/studio/src/plugins/gui_editor/CMakeLists.txt
+++ b/code/studio/src/plugins/gui_editor/CMakeLists.txt
@@ -32,6 +32,7 @@ SET(OVQT_PLUGIN_GUI_EDITOR_HDR
 	editor_message_processor.h
 	action_list.h
 	texture_chooser.h
+	action_property_manager.h
 	)
 	
 SET(OVQT_PLUGIN_GUI_EDITOR_UIS
diff --git a/code/studio/src/plugins/gui_editor/action_property_manager.cpp b/code/studio/src/plugins/gui_editor/action_property_manager.cpp
new file mode 100644
index 000000000..9e7690a56
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/action_property_manager.cpp
@@ -0,0 +1,333 @@
+// Ryzom Core Studio GUI Editor plugin <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+#include "action_property_manager.h"
+#include "action_list.h"
+#include <QMap>
+#include <QList>
+#include <QLineEdit>
+#include <QToolButton>
+#include <QHBoxLayout>
+
+
+////////////////////////////////////////////////////////////////// Manager ///////////////////////////////////////////////////////////////////////////
+
+
+struct ActionPropertyManagerPrivate
+{
+	QMap< const QtProperty*, QString > values;
+};
+
+ActionPropertyManager::ActionPropertyManager( QObject *parent ) :
+QtAbstractPropertyManager( parent )
+{
+	d_ptr = new ActionPropertyManagerPrivate();
+}
+
+ActionPropertyManager::~ActionPropertyManager()
+{
+	delete d_ptr;
+	d_ptr = NULL;
+}
+
+QString ActionPropertyManager::value( const QtProperty *p ) const
+{
+	return valueText( p );
+}
+
+void ActionPropertyManager::setValue( QtProperty *p, const QString &value )
+{
+	if( !d_ptr->values.contains( p ) )
+		return;
+
+	if( d_ptr->values[ p ] == value )
+		return;
+
+	d_ptr->values[ p ] = value;
+
+	Q_EMIT propertyChanged( p );
+	Q_EMIT valueChanged( p, value );
+}
+
+bool ActionPropertyManager::hasValue( const QtProperty *p ) const
+{
+	return d_ptr->values.contains( p );
+}
+
+QString ActionPropertyManager::valueText( const QtProperty *p ) const
+{
+	if( !d_ptr->values.contains( p ) )
+		return "";
+
+	return d_ptr->values[ p ];
+}
+
+void ActionPropertyManager::initializeProperty( QtProperty *p )
+{
+	if( d_ptr->values.contains( p ) )
+		return;
+
+	d_ptr->values[ p ] = "";
+}
+
+void ActionPropertyManager::uninitializeProperty( QtProperty *p )
+{
+	d_ptr->values.remove( p );
+}
+
+
+
+//////////////////////////////////////////////////////////////////// Factory ///////////////////////////////////////////////////////////////////////
+
+
+
+struct ActionEditorFactoryPrivate
+{
+	QMap< QtProperty*, QList< ActionPropertyEditor* > > createdEditors;
+	QMap< ActionPropertyEditor*, QtProperty* > editorToProperty;
+
+	~ActionEditorFactoryPrivate()
+	{
+		createdEditors.clear();
+
+		QMap< ActionPropertyEditor*, QtProperty* >::iterator itr = editorToProperty.begin();
+		while( itr != editorToProperty.end() )
+		{
+			delete itr.key();
+			++itr;
+		}
+		editorToProperty.clear();
+	}
+
+	void addEditor( QtProperty *p, ActionPropertyEditor *editor )
+	{
+		QMap< QtProperty*, QList< ActionPropertyEditor* > >::iterator itr = createdEditors.find( p );
+
+		if( itr != createdEditors.end() )
+		{
+			itr->push_back( editor );
+		}
+		else
+		{
+			QList< ActionPropertyEditor* > l;
+			l.push_back( editor );
+			createdEditors.insert( p, l );
+		}
+
+		editorToProperty.insert( editor, p );
+	}
+
+	void removeEditor( QObject *o )
+	{
+		// Remove from editorToProperty first
+		QMap< ActionPropertyEditor*, QtProperty* >::iterator itr1 = editorToProperty.begin();
+		while( itr1 != editorToProperty.end() )
+		{
+			if( itr1.key() == o )
+				break;
+
+			++itr1;
+		}
+		if( itr1 != editorToProperty.end() )
+			editorToProperty.erase( itr1 );
+
+		// Then from createdEditors
+		QMap< QtProperty*, QList< ActionPropertyEditor* > >::iterator itr2 = createdEditors.begin();
+		while( itr2 != createdEditors.end() )
+		{
+			QList< ActionPropertyEditor* > &l = *itr2;
+			QList< ActionPropertyEditor* >::iterator itr = l.begin();
+			while( itr != l.end() )
+			{
+				if( *itr == o )
+				{
+					QList< ActionPropertyEditor* >::iterator d = itr;
+					++itr;
+					l.erase( d );
+					continue;
+				}
+
+				++itr;
+			}
+
+			++itr2;
+		}
+	}
+
+};
+
+ActionEditorFactory::ActionEditorFactory( QObject *parent ) :
+QtAbstractEditorFactory( parent )
+{
+	d_ptr = new ActionEditorFactoryPrivate();
+}
+
+ActionEditorFactory::~ActionEditorFactory()
+{
+	delete d_ptr;
+	d_ptr = NULL;
+}
+
+void ActionEditorFactory::connectPropertyManager( ActionPropertyManager *manager )
+{
+	connect( manager, SIGNAL( valueChanged( QtProperty*, const QString& ) ), this, SLOT( onPropertyChanged( QtProperty*, const QString& ) ) );
+}
+
+void ActionEditorFactory::disconnectPropertyManager( ActionPropertyManager *manager )
+{
+	disconnect( manager, SIGNAL( valueChanged( QtProperty*, const QString& ) ), this, SLOT( onPropertyChanged( QtProperty*, const QString& ) ) );
+}
+
+QWidget* ActionEditorFactory::createEditor( ActionPropertyManager *manager, QtProperty *p, QWidget *parent )
+{
+	ActionPropertyEditor *editor = new ActionPropertyEditor( parent );
+	editor->setValue( manager->value( p ) );
+
+	connect( editor, SIGNAL( valueChanged( const QString& ) ), this, SLOT( onSetValue( const QString& ) ) );
+	connect( editor, SIGNAL( destroyed( QObject* ) ), this, SLOT( onEditorDestroyed( QObject* ) ) );
+
+	d_ptr->addEditor( p, editor );
+
+	return editor;
+}
+
+void ActionEditorFactory::onPropertyChanged( QtProperty *p, const QString &value )
+{
+	QMap< QtProperty*, QList< ActionPropertyEditor* > >::iterator itr = d_ptr->createdEditors.find( p );
+	if( itr == d_ptr->createdEditors.end() )
+		return;
+
+	QList< ActionPropertyEditor* > &l = *itr;
+	QList< ActionPropertyEditor* >::iterator i = l.begin();
+	while( i != l.end() )
+	{
+		ActionPropertyEditor *editor = *i;
+		
+		editor->blockSignals( true );
+		editor->setValue( value );
+		editor->blockSignals( false );
+
+		++i;
+	}
+}
+
+void ActionEditorFactory::onSetValue( const QString &value )
+{
+	QObject *s = sender();
+	ActionPropertyEditor *editor = qobject_cast< ActionPropertyEditor* >( s );
+	if( editor == NULL )
+		return;
+
+	QMap< ActionPropertyEditor*, QtProperty* >::iterator itr = d_ptr->editorToProperty.find( editor );
+	if( itr == d_ptr->editorToProperty.end() )
+		return;
+
+	QtProperty *p = *itr;
+	
+	ActionPropertyManager *manager = qobject_cast< ActionPropertyManager* >( p->propertyManager() );
+	if( manager == NULL )
+		return;
+
+	blockSignals( true );
+	manager->setValue( p, value );
+	blockSignals( false );
+}
+
+void ActionEditorFactory::onEditorDestroyed( QObject *editor )
+{
+	d_ptr->removeEditor( editor );
+}
+
+
+
+//////////////////////////////////////////////////////////////////////// Editor //////////////////////////////////////////////////////////////////
+
+
+
+ActionPropertyEditor::ActionPropertyEditor( QWidget *parent ) :
+QWidget( parent )
+{
+	setupUi();
+	setupConnections();
+}
+
+ActionPropertyEditor::~ActionPropertyEditor()
+{
+}
+
+void ActionPropertyEditor::setValue( const QString &value )
+{
+	if( lineEdit->text() == value )
+		return;
+
+	disableConnections();
+	lineEdit->setText( value );
+	setupConnections();
+}
+
+void ActionPropertyEditor::showEvent( QShowEvent *e )
+{
+	QWidget::showEvent( e );
+}
+
+void ActionPropertyEditor::onToolButtonClicked()
+{
+	ActionList d;
+	d.load();
+
+	int result = d.exec();
+	if( QDialog::Accepted != result )
+		return;
+
+	lineEdit->setText( d.getSelectedAction() );
+}
+
+void ActionPropertyEditor::onTextChanged( const QString &text )
+{
+	Q_EMIT valueChanged( text );
+}
+
+void ActionPropertyEditor::setupConnections()
+{
+	connect( toolButton, SIGNAL( clicked( bool ) ), this, SLOT( onToolButtonClicked() ) );
+	connect( lineEdit, SIGNAL( textChanged( const QString& ) ), this, SLOT( onTextChanged( const QString& ) ) );
+}
+
+void ActionPropertyEditor::disableConnections()
+{
+	disconnect( toolButton, SIGNAL( clicked( bool ) ), this, SLOT( onToolButtonClicked() ) );
+	disconnect( lineEdit, SIGNAL( textChanged( const QString& ) ), this, SLOT( onTextChanged( const QString& ) ) );
+}
+
+void ActionPropertyEditor::setupUi()
+{
+	lineEdit = new QLineEdit();
+	toolButton = new QToolButton();
+	toolButton->setText( "..." );
+	
+	QHBoxLayout *lt = new QHBoxLayout( this );
+	lt->setContentsMargins( 0, 0, 0, 0 );
+	lt->setSpacing( 0 );
+	lt->addWidget( lineEdit );
+	lt->addWidget( toolButton );
+	
+	setFocusProxy( lineEdit );
+	setSizePolicy( QSizePolicy::Ignored, QSizePolicy::Fixed );
+
+}
+
+
diff --git a/code/studio/src/plugins/gui_editor/action_property_manager.h b/code/studio/src/plugins/gui_editor/action_property_manager.h
new file mode 100644
index 000000000..06cd714d7
--- /dev/null
+++ b/code/studio/src/plugins/gui_editor/action_property_manager.h
@@ -0,0 +1,125 @@
+// Ryzom Core Studio GUI Editor plugin <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+#ifndef ACTION_PROPERTY_MANAGER
+#define ACTION_PROPERTY_MANAGER
+
+#define QT_QTPROPERTYBROWSER_IMPORT
+
+#include "3rdparty/qtpropertybrowser/qtpropertybrowser.h"
+#include <QString>
+
+/////////////////////////////////////////////////////// Manager ///////////////////////////////////////////////////////////////////////////
+
+struct ActionPropertyManagerPrivate;
+
+class ActionPropertyManager : public QtAbstractPropertyManager
+{
+	Q_OBJECT
+	
+public:
+	ActionPropertyManager( QObject *parent = NULL );
+	~ActionPropertyManager();
+
+	QString value( const QtProperty *p ) const;
+
+public Q_SLOTS:
+	void setValue( QtProperty *p, const QString &value );
+
+Q_SIGNALS:
+	void valueChanged( QtProperty *p, const QString &value );
+
+protected:
+	bool hasValue( const QtProperty *p ) const;
+	QString valueText( const QtProperty *p ) const;
+	void initializeProperty( QtProperty *p );
+	void uninitializeProperty( QtProperty *p );
+
+private:
+	ActionPropertyManagerPrivate *d_ptr;
+
+	Q_DISABLE_COPY( ActionPropertyManager );
+};
+
+
+////////////////////////////////////////////////////////////////// Factory /////////////////////////////////////////////////////////////////////////
+
+struct ActionEditorFactoryPrivate;
+
+class ActionEditorFactory : public QtAbstractEditorFactory< ActionPropertyManager >
+{
+	Q_OBJECT
+
+public:
+	ActionEditorFactory( QObject *parent = NULL );
+	~ActionEditorFactory();
+
+protected:
+	void connectPropertyManager( ActionPropertyManager *manager );
+	void disconnectPropertyManager( ActionPropertyManager *manager );
+
+	QWidget* createEditor( ActionPropertyManager *manager, QtProperty *p, QWidget *parent );
+
+private Q_SLOTS:
+	void onPropertyChanged( QtProperty *p, const QString &value );
+	void onSetValue( const QString &value );
+	void onEditorDestroyed( QObject *editor );
+
+private:
+	ActionEditorFactoryPrivate *d_ptr;
+
+	Q_DISABLE_COPY( ActionEditorFactory );
+};
+
+
+///////////////////////////////////////////////////////////////// Editor ///////////////////////////////////////////////////////////////////////////
+
+class QLineEdit;
+class QToolButton;
+
+class ActionPropertyEditor : public QWidget
+{
+	Q_OBJECT
+public:
+	ActionPropertyEditor( QWidget *parent = NULL );
+	~ActionPropertyEditor();
+
+public Q_SLOTS:
+	void setValue( const QString &value );
+
+protected:
+	void showEvent( QShowEvent *e );
+
+private Q_SLOTS:
+	void onToolButtonClicked();
+	void onTextChanged( const QString &text );
+
+Q_SIGNALS:
+	void valueChanged( const QString &value );
+
+private:
+	void setupUi();
+	void setupConnections();
+	void disableConnections();
+
+
+	QLineEdit *lineEdit;
+	QToolButton *toolButton;
+};
+
+#endif
+
diff --git a/code/studio/src/plugins/gui_editor/property_browser_ctrl.cpp b/code/studio/src/plugins/gui_editor/property_browser_ctrl.cpp
index e3594edb0..e7029dd37 100644
--- a/code/studio/src/plugins/gui_editor/property_browser_ctrl.cpp
+++ b/code/studio/src/plugins/gui_editor/property_browser_ctrl.cpp
@@ -26,6 +26,8 @@
 #include "widget_info_tree.h"
 #include <QList>
 
+#include "action_property_manager.h"
+
 namespace
 {
 	class NelBMAlign
@@ -368,9 +370,11 @@ namespace GUIEditor
 		browser = NULL;
 		propertyMgr = new QtVariantPropertyManager;
 		enumMgr = new QtEnumPropertyManager;
+		actionMgr = new ActionPropertyManager;
 
 		variantFactory = new QtVariantEditorFactory;
 		enumFactory = new QtEnumEditorFactory;
+		actionFactory = new ActionEditorFactory;
 
 		ttPairs[ "tooltip_posref" ] = "tooltip_parent_posref";
 		ttPairs[ "tooltip_parent_posref" ] = "tooltip_posref";
@@ -381,11 +385,15 @@ namespace GUIEditor
 
 	CPropBrowserCtrl::~CPropBrowserCtrl()
 	{
+		delete actionMgr;
+		actionMgr = NULL;
 		delete enumMgr;
 		enumMgr = NULL;
 		delete propertyMgr;
 		propertyMgr = NULL;
 
+		delete actionFactory;
+		actionFactory = NULL;
 		delete variantFactory;
 		variantFactory = NULL;
 		delete enumFactory;
@@ -447,7 +455,7 @@ namespace GUIEditor
 		// probably the clear() method clears them too...
 		browser->setFactoryForManager( propertyMgr, variantFactory );		
 		browser->setFactoryForManager( enumMgr, enumFactory );
-
+		browser->setFactoryForManager( actionMgr, actionFactory );
 
 		enablePropertyWatchers();
 	}
@@ -617,12 +625,27 @@ namespace GUIEditor
 		}
 	}
 
+
+	void CPropBrowserCtrl::onActionPropertyChanged( QtProperty *p, const QString &v )
+	{
+		QString propName = p->propertyName();
+		
+		CInterfaceElement *e = CWidgetManager::getInstance()->getElementFromId( currentElement );
+		if( e == NULL )
+			return;
+		
+		e->setProperty( propName.toUtf8().constData(), v.toUtf8().constData() );
+	}
+
 	void CPropBrowserCtrl::enablePropertyWatchers()
 	{
 		connect( propertyMgr, SIGNAL( valueChanged( QtProperty*, const QVariant& ) ),
 			this, SLOT( onPropertyChanged( QtProperty*, const QVariant& ) ) );
 		connect( enumMgr, SIGNAL( valueChanged( QtProperty*, int ) ),
 			this, SLOT( onEnumPropertyChanged( QtProperty*, int ) ) );
+		
+		connect( actionMgr, SIGNAL( valueChanged( QtProperty*, const QString& ) ),
+			this, SLOT( onActionPropertyChanged( QtProperty*, const QString& ) ) );
 	}
 
 	void CPropBrowserCtrl::disablePropertyWatchers()
@@ -631,6 +654,9 @@ namespace GUIEditor
 			this, SLOT( onPropertyChanged( QtProperty*, const QVariant& ) ) );
 		disconnect( enumMgr, SIGNAL( valueChanged( QtProperty*, int ) ),
 			this, SLOT( onEnumPropertyChanged( QtProperty*, int ) ) );
+
+		disconnect( actionMgr, SIGNAL( valueChanged( QtProperty*, const QString& ) ),
+			this, SLOT( onActionPropertyChanged( QtProperty*, const QString& ) ) );
 	}
 
 	void CPropBrowserCtrl::setupProperties( const std::string &type, const CInterfaceElement *element )
@@ -656,7 +682,22 @@ namespace GUIEditor
 	{
 		QtVariantProperty *p = NULL;
 		QVariant v;
-		
+
+		if( prop.propType == "action" )
+		{
+			std::string j = element->getProperty( prop.propName );
+
+			if( j.empty() )
+				return;
+
+			QtProperty *pp = actionMgr->addProperty( prop.propName.c_str() );
+			if( pp == NULL )
+				return;
+
+			actionMgr->setValue( pp, j.c_str() );
+			browser->addProperty( pp );
+		}
+		else		
 		if( prop.propType == "bitmap_align" )
 		{
 			std::string j = element->getProperty( prop.propName );
diff --git a/code/studio/src/plugins/gui_editor/property_browser_ctrl.h b/code/studio/src/plugins/gui_editor/property_browser_ctrl.h
index bec4004d3..80118bc0b 100644
--- a/code/studio/src/plugins/gui_editor/property_browser_ctrl.h
+++ b/code/studio/src/plugins/gui_editor/property_browser_ctrl.h
@@ -31,6 +31,9 @@ class QtEnumEditorFactory;
 class QtProperty;
 class QVariant;
 
+class ActionPropertyManager;
+class ActionEditorFactory;
+
 namespace NLGUI
 {
 	class CInterfaceElement;
@@ -59,6 +62,7 @@ namespace GUIEditor
 	private Q_SLOTS:
 		void onPropertyChanged( QtProperty *prop, const QVariant &v );
 		void onEnumPropertyChanged( QtProperty *prop, int value );
+		void onActionPropertyChanged( QtProperty *p, const QString &v );
 
 	private:
 		void enablePropertyWatchers();
@@ -70,9 +74,11 @@ namespace GUIEditor
 		QtTreePropertyBrowser *browser;
 		QtVariantPropertyManager *propertyMgr;
 		QtEnumPropertyManager *enumMgr;
+		ActionPropertyManager *actionMgr;
 
 		QtVariantEditorFactory *variantFactory;
 		QtEnumEditorFactory *enumFactory;
+		ActionEditorFactory *actionFactory;
 
 		std::string currentElement;
 		std::map< std::string, SWidgetInfo > widgetInfo;
diff --git a/code/studio/src/plugins/gui_editor/widgets/CtrlBaseButton.xml b/code/studio/src/plugins/gui_editor/widgets/CtrlBaseButton.xml
index 72e362556..33f9f3a3f 100644
--- a/code/studio/src/plugins/gui_editor/widgets/CtrlBaseButton.xml
+++ b/code/studio/src/plugins/gui_editor/widgets/CtrlBaseButton.xml
@@ -60,7 +60,7 @@
         </property>
         <property>
             <name>onover</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -70,7 +70,7 @@
         </property>
         <property>
             <name>onclick_l</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -80,7 +80,7 @@
         </property>
         <property>
             <name>ondblclick_l</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -90,7 +90,7 @@
         </property>
         <property>
             <name>onclick_r</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -100,7 +100,7 @@
         </property>
         <property>
             <name>onlongclick_l</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -110,7 +110,7 @@
         </property>
         <property>
             <name>onclock_tick</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
diff --git a/code/studio/src/plugins/gui_editor/widgets/GroupContainer.xml b/code/studio/src/plugins/gui_editor/widgets/GroupContainer.xml
index b374bca19..3d879a150 100644
--- a/code/studio/src/plugins/gui_editor/widgets/GroupContainer.xml
+++ b/code/studio/src/plugins/gui_editor/widgets/GroupContainer.xml
@@ -110,7 +110,7 @@
         </property>
         <property>
             <name>on_open</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -120,7 +120,7 @@
         </property>
         <property>
             <name>on_close</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -130,7 +130,7 @@
         </property>
         <property>
             <name>on_close_button</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -140,7 +140,7 @@
         </property>
         <property>
             <name>on_move</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -150,7 +150,7 @@
         </property>
         <property>
             <name>on_deactive_check</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -160,7 +160,7 @@
         </property>
         <property>
             <name>on_resize</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -170,7 +170,7 @@
         </property>
         <property>
             <name>on_alpha_settings_changed</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -180,7 +180,7 @@
         </property>
         <property>
             <name>on_begin_move</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
diff --git a/code/studio/src/plugins/gui_editor/widgets/InterfaceGroup.xml b/code/studio/src/plugins/gui_editor/widgets/InterfaceGroup.xml
index b9e99d336..ddcdf01e6 100644
--- a/code/studio/src/plugins/gui_editor/widgets/InterfaceGroup.xml
+++ b/code/studio/src/plugins/gui_editor/widgets/InterfaceGroup.xml
@@ -40,7 +40,7 @@
         </property>
         <property>
             <name>on_active</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -50,7 +50,7 @@
         </property>
         <property>
             <name>on_deactive</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -80,7 +80,7 @@
         </property>
         <property>
             <name>group_onclick_r</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -90,7 +90,7 @@
         </property>
         <property>
             <name>group_onclick_l</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -100,7 +100,7 @@
         </property>
         <property>
             <name>on_enter</name>
-            <type>string</type>
+            <type>action</type>
             <default>handler</default>
         </property>
         <property>
diff --git a/code/studio/src/plugins/gui_editor/widgets/InterfaceGroupWheel.xml b/code/studio/src/plugins/gui_editor/widgets/InterfaceGroupWheel.xml
index 62d67cc0a..b095ecac5 100644
--- a/code/studio/src/plugins/gui_editor/widgets/InterfaceGroupWheel.xml
+++ b/code/studio/src/plugins/gui_editor/widgets/InterfaceGroupWheel.xml
@@ -10,7 +10,7 @@
     <properties>
         <property>
             <name>on_wheel_up</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>
@@ -20,7 +20,7 @@
         </property>
         <property>
             <name>on_wheel_down</name>
-            <type>string</type>
+            <type>action</type>
             <default></default>
         </property>
         <property>