diff --git a/sources/conductorautonumerotation.cpp b/sources/conductorautonumerotation.cpp
index 9da3870bd..5dccbd9d9 100644
--- a/sources/conductorautonumerotation.cpp
+++ b/sources/conductorautonumerotation.cpp
@@ -16,13 +16,13 @@
 	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "conductorautonumerotation.h"
-#include "diagramcommands.h"
 #include "numerotationcontextcommands.h"
 #include "qetdiagrameditor.h"
 #include "conductor.h"
 #include "diagram.h"
 #include "potentialtextsdialog.h"
 #include "qet.h"
+#include "QPropertyUndoCommand/qpropertyundocommand.h"
 
 /**
  * @brief ConductorAutoNumerotation::ConductorAutoNumerotation
@@ -80,42 +80,34 @@ void ConductorAutoNumerotation::checkPotential(Conductor *conductor, QUndoComman
  * @brief ConductorAutoNumerotation::applyText
  * apply the text @t to @conductor_ and all conductors at the same potential
  */
-void ConductorAutoNumerotation::applyText(QString t) {
+void ConductorAutoNumerotation::applyText(QString t)
+{
 	if (!conductor_) return;
 
-	if (conductor_list.empty())
-	{
-			//initialize the corresponding UndoCommand object
-		ChangeConductorPropertiesCommand *ccpc = new ChangeConductorPropertiesCommand (conductor_, m_parent_undo);
-		ccpc -> setOldSettings (conductor_ -> properties());
-		ConductorProperties cp = conductor_ -> properties();
-		cp.text = t;
-		ccpc -> setNewSettings(cp);
-		if (!m_parent_undo)
-			m_diagram -> undoStack().push(ccpc);
-	}
-	else
-	{
-		QList <Conductor *> clist = conductor_list.toList();
-		clist << conductor_;
-		QList <ConductorProperties> old_properties, new_properties;
-		ConductorProperties cp;
+	QVariant old_value, new_value;
+	ConductorProperties cp = conductor_ -> properties();
+	old_value.setValue(cp);
+	cp.text = t;
+	new_value.setValue(cp);
 
-		foreach (Conductor *c, clist)
+	QPropertyUndoCommand *undo = new QPropertyUndoCommand(conductor_, "properties", old_value, new_value, m_parent_undo);
+	undo->setText(QObject::tr("Modifier les propriétés d'un conducteur", "undo caption"));
+
+	if (!conductor_list.isEmpty())
+	{
+		undo->setText(QObject::tr("Modifier les propriétés de plusieurs conducteurs", "undo caption"));
+		foreach (Conductor *cond, conductor_list)
 		{
-			old_properties << c -> properties();
-			cp = c -> properties();
-			cp.text = t;
-			new_properties << cp;
+			ConductorProperties cp2 = cond -> properties();
+			old_value.setValue(cp2);
+			cp2.text = t;
+			new_value.setValue(cp2);
+			new QPropertyUndoCommand(cond, "properties", old_value, new_value, undo);
 		}
-
-			//initialize the corresponding UndoCommand object
-		ChangeSeveralConductorsPropertiesCommand *cscpc = new ChangeSeveralConductorsPropertiesCommand(clist, m_parent_undo);
-		cscpc -> setOldSettings(old_properties);
-		cscpc -> setNewSettings(new_properties);
-		if (!m_parent_undo)
-			m_diagram -> undoStack().push(cscpc);
 	}
+
+	if (!m_parent_undo)
+		m_diagram->undoStack().push(undo);
 }
 
 /**
diff --git a/sources/conductorproperties.h b/sources/conductorproperties.h
index f8f5f56d0..91ce40582 100644
--- a/sources/conductorproperties.h
+++ b/sources/conductorproperties.h
@@ -17,9 +17,12 @@
 */
 #ifndef CONDUCTOR_PROPERTIES_H
 #define CONDUCTOR_PROPERTIES_H
+
 #include "qet.h"
-#include <QtWidgets>
-#include <QtXml>
+#include <QColor>
+
+class QPainter;
+
 /**
 	This class represents the properties of a singleline conductor.
 */
@@ -109,4 +112,7 @@ class ConductorProperties {
 	void readStyle(const QString &);
 	QString writeStyle() const;
 };
+
+Q_DECLARE_METATYPE(ConductorProperties)
+
 #endif
diff --git a/sources/diagramcommands.cpp b/sources/diagramcommands.cpp
index a631c3ef0..585d449ea 100644
--- a/sources/diagramcommands.cpp
+++ b/sources/diagramcommands.cpp
@@ -26,7 +26,6 @@
 #include "diagram.h"
 #include "qetgraphicsitem/diagramtextitem.h"
 #include "qetgraphicsitem/diagramimageitem.h"
-#include "conductorautonumerotation.h"
 #include <QPropertyAnimation>
 
 QString itemText(const QetGraphicsItem *item) {
@@ -810,140 +809,3 @@ void ChangeBorderCommand::redo() {
 	diagram -> showMe();
 	diagram -> border_and_titleblock.importBorder(new_properties);
 }
-
-/**
-	Constructeur
-	@param c Le conducteur dont on modifie les proprietes
-	@param parent QUndoCommand parent
-*/
-ChangeConductorPropertiesCommand::ChangeConductorPropertiesCommand(Conductor *c, QUndoCommand *parent) :
-	QUndoCommand(QObject::tr("modifier les propriétés d'un conducteur", "undo caption"), parent),
-	conductor(c),
-	old_settings_set(false),
-	new_settings_set(false)
-{
-}
-
-/// Destructeur
-ChangeConductorPropertiesCommand::~ChangeConductorPropertiesCommand() {
-}
-
-/// definit l'ancienne configuration
-void ChangeConductorPropertiesCommand::setOldSettings(const ConductorProperties &properties) {
-	old_properties = properties;
-	old_settings_set = true;
-}
-
-/// definit la nouvelle configuration
-void ChangeConductorPropertiesCommand::setNewSettings(const ConductorProperties &properties) {
-	new_properties = properties;
-	new_settings_set = true;
-}
-
-/**
-	Annule les changements - Attention : les anciens et nouveaux parametres
-	doivent avoir ete definis a l'aide de setNewSettings et setOldSettings
-*/
-void ChangeConductorPropertiesCommand::undo() {
-	if (conductor -> diagram()) conductor -> diagram() -> showMe();
-	if (old_settings_set && new_settings_set) {
-		conductor -> setProperties(old_properties);
-		conductor -> update();
-	}
-}
-
-/**
-	Refait les changements - Attention : les anciens et nouveaux parametres
-	doivent avoir ete definis a l'aide de setNewSettings et setOldSettings
-*/
-void ChangeConductorPropertiesCommand::redo() {
-	if (conductor -> diagram()) conductor -> diagram() -> showMe();
-	if (old_settings_set && new_settings_set) {
-		conductor -> setProperties(new_properties);
-		conductor -> update();
-	}
-}
-
-/**
-	Constructeur
-	@param c La liste des conducteurs dont on modifie les proprietes
-	@param parent QUndoCommand parent
-*/
-ChangeSeveralConductorsPropertiesCommand::ChangeSeveralConductorsPropertiesCommand(QList<Conductor *>c, QUndoCommand *parent) :
-	QUndoCommand(QObject::tr("modifier les propriétés de plusieurs conducteurs", "undo caption"), parent),
-	conductors(c),
-	old_settings_set(false),
-	new_settings_set(false)
-{
-}
-
-/// Destructeur
-ChangeSeveralConductorsPropertiesCommand::~ChangeSeveralConductorsPropertiesCommand() {
-}
-
-/// definit l'ancienne configuration
-void ChangeSeveralConductorsPropertiesCommand::setOldSettings(const QList<ConductorProperties> &properties) {
-	if (!old_settings_set) {
-		old_properties = properties;
-		old_settings_set = true;
-	}
-}
-
-/// definit la nouvelle configuration
-void ChangeSeveralConductorsPropertiesCommand::setNewSettings(const QList<ConductorProperties> &properties) {
-	if (!new_settings_set) {
-		new_properties = properties;
-		new_settings_set = true;
-	}
-}
-
-void ChangeSeveralConductorsPropertiesCommand::setNewSettings(const ConductorProperties &properties) {
-	if (!new_settings_set) {
-		single_new_properties = properties;
-		new_settings_set = true;
-	}
-}
-
-/**
-	Annule les changements - Attention : les anciens et nouveaux parametres
-	doivent avoir ete definis a l'aide de setNewSettings et setOldSettings
-*/
-void ChangeSeveralConductorsPropertiesCommand::undo() {
-	if (conductors.first() -> diagram()) conductors.first() -> diagram();
-	if (old_settings_set && new_settings_set) {
-		int i=0;
-		foreach(Conductor *c, conductors) {
-			c -> setProperties(old_properties.at(i));
-			c -> update();
-			i++;
-		}
-	}
-}
-
-/**
-	Refait les changements - Attention : les anciens et nouveaux parametres
-	doivent avoir ete definis a l'aide de setNewSettings et setOldSettings
-*/
-void ChangeSeveralConductorsPropertiesCommand::redo() {
-	if (conductors.first() -> diagram()) conductors.first() -> diagram();
-	if (old_settings_set && new_settings_set) {
-
-		//new propertie are the same for each conductor
-		if (new_properties.isEmpty()) {
-			foreach(Conductor *c, conductors) {
-				c -> setProperties(single_new_properties);
-				c -> update();
-			}
-		}
-
-		//new propertie are different for each conductor
-		else {
-			int i=0;
-			foreach(Conductor *c, conductors) {
-				c -> setProperties(new_properties.at(i));
-				c -> update();
-				i++;
-			}
-		}
-	}
-}
diff --git a/sources/diagramcommands.h b/sources/diagramcommands.h
index dcd521374..14acd80d3 100644
--- a/sources/diagramcommands.h
+++ b/sources/diagramcommands.h
@@ -17,10 +17,9 @@
 */
 #ifndef DIAGRAM_COMMANDS_H
 #define DIAGRAM_COMMANDS_H
-#include <QtWidgets>
+
 #include "borderproperties.h"
 #include "qetgraphicsitem/conductor.h"
-#include "conductorproperties.h"
 #include "diagramcontent.h"
 #include "titleblockproperties.h"
 #include "qet.h"
@@ -416,70 +415,4 @@ class ChangeBorderCommand : public QUndoCommand {
 	BorderProperties new_properties;
 };
 
-/**
-	This command changes the properties for a particular conductor.
-*/
-class ChangeConductorPropertiesCommand : public QUndoCommand {
-	// constructors, destructor
-	public:
-	ChangeConductorPropertiesCommand(Conductor *, QUndoCommand * = 0);
-	virtual ~ChangeConductorPropertiesCommand();
-	private:
-	ChangeConductorPropertiesCommand(const ChangeConductorPropertiesCommand &);
-	
-	// methods
-	public:
-	virtual void undo();
-	virtual void redo();
-	virtual void setOldSettings(const ConductorProperties &);
-	virtual void setNewSettings(const ConductorProperties &);
-	
-	// attributes
-	private:
-	/// modified conductor
-	Conductor *conductor;
-	/// properties before the change
-	ConductorProperties old_properties;
-	/// properties after the change
-	ConductorProperties new_properties;
-	/// track whether pre-change properties were set
-	bool old_settings_set;
-	/// track whether post-change properties were set
-	bool new_settings_set;
-};
-
-/**
-	This command changes the properties for several conductors.
-*/
-class ChangeSeveralConductorsPropertiesCommand : public QUndoCommand {
-	// constructors, destructor
-	public:
-	ChangeSeveralConductorsPropertiesCommand(QList<Conductor *>, QUndoCommand * = 0);
-	virtual ~ChangeSeveralConductorsPropertiesCommand();
-	private:
-	ChangeSeveralConductorsPropertiesCommand(const ChangeSeveralConductorsPropertiesCommand &);
-
-	// methods
-	public:
-	virtual void undo();
-	virtual void redo();
-	virtual void setOldSettings(const QList<ConductorProperties> &);
-	virtual void setNewSettings(const QList<ConductorProperties> &);
-	virtual void setNewSettings(const ConductorProperties &);
-
-	// attributes
-	private:
-	/// modified conductor
-	QList<Conductor *> conductors;
-	/// properties before the change
-	QList <ConductorProperties> old_properties;
-	/// properties after the change
-	QList <ConductorProperties> new_properties;
-	///  single properties for each conductor
-	ConductorProperties single_new_properties;
-	/// track whether pre-change properties were set
-	bool old_settings_set;
-	/// track whether post-change properties were set
-	bool new_settings_set;
-};
 #endif
diff --git a/sources/diagramview.cpp b/sources/diagramview.cpp
index 6d684cea8..b8d202cb6 100644
--- a/sources/diagramview.cpp
+++ b/sources/diagramview.cpp
@@ -43,6 +43,7 @@
 #include "diagrampropertiesdialog.h"
 #include "dveventinterface.h"
 #include "diagrameventaddelement.h"
+#include "QPropertyUndoCommand/qpropertyundocommand.h"
 
 /**
 	Constructeur
@@ -947,14 +948,14 @@ void DiagramView::editSelectedConductorColor() {
 	Edit the color of the given conductor
 	@param edited_conductor Conductor we want to change the color
 */
-void DiagramView::editConductorColor(Conductor *edited_conductor) {
-	if (scene -> isReadOnly()) return;
-	if (!edited_conductor) return;
+void DiagramView::editConductorColor(Conductor *edited_conductor)
+{
+	if (scene -> isReadOnly() || !edited_conductor) return;
 	
-	// store the initial properties of the provided conductor
+		// store the initial properties of the provided conductor
 	ConductorProperties initial_properties = edited_conductor -> properties();
 	
-	// prepare a color dialog showing the initial conductor color
+		// prepare a color dialog showing the initial conductor color
 	QColorDialog *color_dialog = new QColorDialog(this);
 	color_dialog -> setWindowTitle(tr("Choisir la nouvelle couleur de ce conducteur"));
 #ifdef Q_OS_MAC
@@ -962,18 +963,21 @@ void DiagramView::editConductorColor(Conductor *edited_conductor) {
 #endif
 	color_dialog -> setCurrentColor(initial_properties.color);
 	
-	// asks the user what color he wishes to apply
-	if (color_dialog -> exec() == QDialog::Accepted) {
+		// asks the user what color he wishes to apply
+	if (color_dialog -> exec() == QDialog::Accepted)
+	{
 		QColor new_color = color_dialog -> selectedColor();
-		if (new_color != initial_properties.color) {
-			// the user chose a different color
-			ConductorProperties new_properties = initial_properties;
-			new_properties.color = new_color;
-			
-			ChangeConductorPropertiesCommand *ccpc = new ChangeConductorPropertiesCommand(edited_conductor);
-			ccpc -> setOldSettings(initial_properties);
-			ccpc -> setNewSettings(new_properties);
-			diagram() -> undoStack().push(ccpc);
+		if (new_color != initial_properties.color)
+		{
+				// the user chose a different color
+			QVariant old_value, new_value;
+			old_value.setValue(initial_properties);
+			initial_properties.color = new_color;
+			new_value.setValue(initial_properties);
+
+			QPropertyUndoCommand *undo = new QPropertyUndoCommand(edited_conductor, "properties", old_value, new_value);
+			undo->setText(tr("Modifier les propriétés d'un conducteur", "undo caption"));
+			diagram() -> undoStack().push(undo);
 		}
 	}
 }
diff --git a/sources/qetgraphicsitem/conductor.cpp b/sources/qetgraphicsitem/conductor.cpp
index 965e4f316..b9e4f7026 100644
--- a/sources/qetgraphicsitem/conductor.cpp
+++ b/sources/qetgraphicsitem/conductor.cpp
@@ -27,6 +27,8 @@
 #include "terminal.h"
 #include "conductorautonumerotation.h"
 #include "conductorpropertiesdialog.h"
+#include "QPropertyUndoCommand/qpropertyundocommand.h"
+
 #define PR(x) qDebug() << #x " = " << x;
 
 bool Conductor::pen_and_brush_initialized = false;
@@ -1371,6 +1373,7 @@ void Conductor::readProperties() {
 		text_item -> setVisible(properties_.m_show_text);
 	}
 	calculateTextItemPosition();
+	update();
 }
 
 /**
@@ -1415,14 +1418,15 @@ void Conductor::displayedTextChanged() {
 
 		if (qmbreturn == 0 || qmbreturn == QMessageBox::No)
 		{
-			// initialise l'objet UndoCommand correspondant
+			QVariant old_value, new_value;
+			old_value.setValue(properties_);
 			ConductorProperties new_properties(properties_);
 			new_properties.text = text_item -> toPlainText();
+			new_value.setValue(new_properties);
 
-			ChangeConductorPropertiesCommand *ccpc = new ChangeConductorPropertiesCommand(this);
-			ccpc -> setOldSettings(properties_);
-			ccpc -> setNewSettings(new_properties);
-			my_diagram -> undoStack().push(ccpc);
+			QPropertyUndoCommand *undo = new QPropertyUndoCommand(this, "properties", old_value, new_value);
+			undo->setText(tr("Modifier les propriétés d'un conducteur", "undo caption"));
+			my_diagram -> undoStack().push(undo);
 		}
 	}
 }
diff --git a/sources/qetgraphicsitem/conductor.h b/sources/qetgraphicsitem/conductor.h
index 2e7180816..ad6cbbb06 100644
--- a/sources/qetgraphicsitem/conductor.h
+++ b/sources/qetgraphicsitem/conductor.h
@@ -19,6 +19,7 @@
 #define CONDUCTOR_H
 
 #include "conductorproperties.h"
+#include <QGraphicsPathItem>
 
 class ConductorProfile;
 class ConductorSegmentProfile;
@@ -34,12 +35,13 @@ typedef QHash<Qt::Corner, ConductorProfile> ConductorProfilesGroup;
 	This class represents a conductor, i.e. a wire between two element
 	terminals.
 */
-class Conductor : public QObject, public QGraphicsPathItem {
-	
+class Conductor : public QObject, public QGraphicsPathItem
+{
 	Q_OBJECT
 
 	Q_PROPERTY(QPointF pos READ pos WRITE setPos)
 	Q_PROPERTY(int animPath READ fakePath WRITE updatePathAnimate)
+	Q_PROPERTY(ConductorProperties properties READ properties WRITE setProperties)
 	
 		// constructors, destructor
 	public:
diff --git a/sources/qetproject.h b/sources/qetproject.h
index 81f707dbd..ffe25e142 100644
--- a/sources/qetproject.h
+++ b/sources/qetproject.h
@@ -38,6 +38,7 @@ class XmlElementsCollection;
 class MoveElementsHandler;
 class MoveTitleBlockTemplatesHandler;
 class NumerotationContext;
+class QUndoStack;
 
 /**
 	This class represents a QET project. Typically saved as a .qet file, it
diff --git a/sources/ui/conductorpropertiesdialog.cpp b/sources/ui/conductorpropertiesdialog.cpp
index cf0189303..0b35752f9 100644
--- a/sources/ui/conductorpropertiesdialog.cpp
+++ b/sources/ui/conductorpropertiesdialog.cpp
@@ -18,11 +18,10 @@
 
 #include "conductorpropertiesdialog.h"
 #include "ui_conductorpropertiesdialog.h"
-
 #include "conductor.h"
 #include "conductorpropertieswidget.h"
-#include "diagramcommands.h"
 #include "diagram.h"
+#include "QPropertyUndoCommand/qpropertyundocommand.h"
 
 /**
  * @brief ConductorPropertiesDialog::ConductorPropertiesDialog
@@ -58,36 +57,31 @@ ConductorPropertiesDialog::~ConductorPropertiesDialog()
  * @param conductor, conductor to edit propertie
  * @param parent, parent widget
  */
-void ConductorPropertiesDialog::PropertiesDialog(Conductor *conductor, QWidget *parent) {
+void ConductorPropertiesDialog::PropertiesDialog(Conductor *conductor, QWidget *parent)
+{
 	ConductorPropertiesDialog cpd (conductor, parent);
 
-	if (cpd.exec() == QDialog::Accepted && cpd.properties() != conductor->properties()) {
+	if (cpd.exec() == QDialog::Accepted && cpd.properties() != conductor->properties())
+	{
+		QVariant old_value, new_value;
+		old_value.setValue(conductor->properties());
+		new_value.setValue(cpd.properties());
 
-		if (cpd.applyAll()) {
-			QList <Conductor *> conductorslist = conductor -> relatedPotentialConductors().toList();
-			conductorslist << conductor;
-			QList <ConductorProperties> old_properties_list;
+		QPropertyUndoCommand *undo = new QPropertyUndoCommand(conductor, "properties", old_value, new_value);
+		undo->setText(tr("Modifier les propriétés d'un conducteur", "undo caption"));
 
-			foreach (Conductor *c, conductorslist) {
-				if (c == conductor) {
-					old_properties_list << conductor -> properties();
-				} else {
-					old_properties_list << c -> properties();
-					c -> setProperties( cpd.properties() );
-				}
+			//Make undo for all related potiential conductors
+		if (cpd.applyAll() && !conductor->relatedPotentialConductors().isEmpty())
+		{
+			undo->setText(tr("Modifier les propriétés de plusieurs conducteurs", "undo caption"));
+			foreach (Conductor *cond, conductor->relatedPotentialConductors())
+			{
+				old_value.setValue(cond->properties());
+				new QPropertyUndoCommand (cond, "properties", old_value, new_value, undo);
 			}
-			//initialize the corresponding UndoCommand object
-			ChangeSeveralConductorsPropertiesCommand *cscpc = new ChangeSeveralConductorsPropertiesCommand(conductorslist);
-			cscpc -> setOldSettings(old_properties_list);
-			cscpc -> setNewSettings(cpd.properties());
-			conductor -> diagram() -> undoStack().push(cscpc);
-		} else {
-			// initialize the corresponding UndoCommand object
-			ChangeConductorPropertiesCommand *ccpc = new ChangeConductorPropertiesCommand(conductor);
-			ccpc -> setOldSettings(conductor -> properties());
-			ccpc -> setNewSettings(cpd.properties());
-			conductor -> diagram() -> undoStack().push(ccpc);
 		}
+
+		conductor->diagram()->undoStack().push(undo);
 	}
 }
 
diff --git a/sources/ui/potentialtextsdialog.cpp b/sources/ui/potentialtextsdialog.cpp
index c259de49f..0c0076f4d 100644
--- a/sources/ui/potentialtextsdialog.cpp
+++ b/sources/ui/potentialtextsdialog.cpp
@@ -19,6 +19,7 @@
 #include "potentialtextsdialog.h"
 #include "ui_potentialtextsdialog.h"
 #include <QSignalMapper>
+#include <QRadioButton>
 
 /**
  * @brief PotentialTextsDialog::PotentialTextsDialog