diff --git a/sources/ElementsCollection/elementcollectionhandler.cpp b/sources/ElementsCollection/elementcollectionhandler.cpp
index 719bdcf84..b1248a038 100644
--- a/sources/ElementsCollection/elementcollectionhandler.cpp
+++ b/sources/ElementsCollection/elementcollectionhandler.cpp
@@ -125,22 +125,13 @@ ElementLocation ECHSFileToFile::copyElement(ElementLocation &source, ElementLoca
 
 /******************************************************/
 
-/**
- * @brief ECHSFileToXml::ECHSFileToXml
- * @param source
- * @param destination
- */
-ECHSFileToXml::ECHSFileToXml(ElementLocation &source, ElementLocation &destination) :
+ECHSToXml::ECHSToXml(ElementLocation &source, ElementLocation &destination) :
 	ECHStrategy(source, destination)
 {}
 
-/**
- * @brief ECHSFileToXml::copy
- * @return
- */
-ElementLocation ECHSFileToXml::copy()
+ElementLocation ECHSToXml::copy()
 {
-	if (!(m_source.isFileSystem() && m_destination.isDirectory() && m_destination.isProject())) return ElementLocation();
+	if (!(m_source.exist() && m_destination.isDirectory() && m_destination.isProject())) return ElementLocation();
 
 		//Check if the destination already have an item with the same name of the item to copy
 	ElementLocation location(m_destination.projectCollectionPath() + "/" + m_source.fileName());
@@ -186,7 +177,7 @@ ElementLocation ElementCollectionHandler::copy(ElementLocation &source, ElementL
     if (!source.exist() || !destination.exist() || destination.isElement()) return ElementLocation();
 
     if (source.isFileSystem() && destination.isFileSystem()) m_strategy = new ECHSFileToFile(source, destination);
-	else if (source.isFileSystem() && destination.isProject()) m_strategy = new ECHSFileToXml(source, destination);
+	else if (destination.isProject()) m_strategy = new ECHSToXml(source, destination);
 
 	if (m_strategy)
 		return m_strategy->copy();
diff --git a/sources/ElementsCollection/elementcollectionhandler.h b/sources/ElementsCollection/elementcollectionhandler.h
index b4be91482..2f2c50ec0 100644
--- a/sources/ElementsCollection/elementcollectionhandler.h
+++ b/sources/ElementsCollection/elementcollectionhandler.h
@@ -22,6 +22,10 @@
 
 class QWidget;
 
+/**
+ * @brief The ECHStrategy class
+ * Abstract class for manage copy of directory or element from a collection to another
+ */
 class ECHStrategy
 {
     public:
@@ -32,6 +36,11 @@ class ECHStrategy
         ElementLocation m_source, m_destination;
 };
 
+/**
+ * @brief The ECHSFileToFile class
+ * Manage the copy of directory or element from a file system collection to another file system collection
+ * (Work only if the source is the common collection and the destination is the custom collection)
+ */
 class ECHSFileToFile : public ECHStrategy
 {
     public:
@@ -43,10 +52,15 @@ class ECHSFileToFile : public ECHStrategy
         ElementLocation copyElement(ElementLocation &source, ElementLocation &destination, QString rename = QString());
 };
 
-class ECHSFileToXml : public ECHStrategy
+/**
+ * @brief The ECHSToXml class
+ * Manage the copy of a directory or element from a collection (no matter if the source is a file system collection or an xml collection)
+ * to an xml collection
+ */
+class ECHSToXml : public ECHStrategy
 {
 	public:
-		ECHSFileToXml (ElementLocation &source, ElementLocation &destination);
+		ECHSToXml (ElementLocation &source, ElementLocation &destination);
 		ElementLocation copy();
 };
 
diff --git a/sources/ElementsCollection/elementlocation.cpp b/sources/ElementsCollection/elementlocation.cpp
index ef9bbf06c..4327dd2c6 100644
--- a/sources/ElementsCollection/elementlocation.cpp
+++ b/sources/ElementsCollection/elementlocation.cpp
@@ -233,8 +233,9 @@ bool ElementLocation::isElement() const {
  * @brief ElementLocation::isDirectory
  * @return true if this location represent a directory
  */
-bool ElementLocation::isDirectory() const {
-	return !isElement();
+bool ElementLocation::isDirectory() const
+{
+	return (!isElement() && !m_collection_path.isEmpty());
 }
 
 /**
@@ -270,15 +271,17 @@ bool ElementLocation::exist() const
 		return m_project->embeddedElementCollection()->exist(collectionPath(false));
 	else
 	{
+		if (fileSystemPath().isEmpty()) return false;
+
 		if (isDirectory())
 		{
 			QDir dir(fileSystemPath());
 			return dir.exists();
 		}
-		else
-		{
+		else if (isElement())
 			return QFile::exists(fileSystemPath());
-		}
+		else
+			return false;
 	}
 }
 
diff --git a/sources/ElementsCollection/elementscollectionmodel.cpp b/sources/ElementsCollection/elementscollectionmodel.cpp
index 62a808a52..49a226db9 100644
--- a/sources/ElementsCollection/elementscollectionmodel.cpp
+++ b/sources/ElementsCollection/elementscollectionmodel.cpp
@@ -208,13 +208,22 @@ bool ElementsCollectionModel::dropMimeData(const QMimeData *data, Qt::DropAction
 	ElementCollectionItem *eci =  static_cast<ElementCollectionItem*> (parent.internalPointer());
 	if (!eci || eci->isElement()) return false;
 
-	connect(eci, &ElementCollectionItem::beginInsertRows, [this, &parent](ElementCollectionItem *eci, int first, int last){ Q_UNUSED(eci); this->beginInsertRows(parent, first, last); });
-	connect(eci, &ElementCollectionItem::endInsertRows,   [this, &parent](){ this->endInsertRows(); });
-	connect(eci, &ElementCollectionItem::beginRemoveRows, [this, &parent](ElementCollectionItem *eci, int first, int last){ Q_UNUSED(eci); this->beginRemoveRows(parent, first, last); });
-	connect(eci, &ElementCollectionItem::endRemoveRows,   [this, &parent](){ this->endRemoveRows(); });
+	m_parent_at_drop = parent;
+
+	connect(eci, &ElementCollectionItem::beginInsertRows, this, &ElementsCollectionModel::bir);
+	connect(eci, &ElementCollectionItem::endInsertRows,   this, &ElementsCollectionModel::endInsertRows);
+	connect(eci, &ElementCollectionItem::beginRemoveRows, this, &ElementsCollectionModel::brr);
+	connect(eci, &ElementCollectionItem::endRemoveRows,   this, &ElementsCollectionModel::endRemoveRows);
 
 	bool rb = eci->dropMimeData(data, action, row, column);
 
+	disconnect(eci, &ElementCollectionItem::beginInsertRows, this, &ElementsCollectionModel::bir);
+	disconnect(eci, &ElementCollectionItem::endInsertRows,   this, &ElementsCollectionModel::endInsertRows);
+	disconnect(eci, &ElementCollectionItem::beginRemoveRows, this, &ElementsCollectionModel::brr);
+	disconnect(eci, &ElementCollectionItem::endRemoveRows,   this, &ElementsCollectionModel::endRemoveRows);
+
+	m_parent_at_drop = QModelIndex();
+
 	return rb;
 }
 
@@ -349,3 +358,17 @@ void ElementsCollectionModel::elementIntegratedToCollection(QETProject *project,
 	eci->insertNewItem(collection_name);
 	endInsertRows();
 }
+
+void ElementsCollectionModel::bir(ElementCollectionItem *eci, int first, int last)
+{
+	Q_UNUSED(eci);
+	if (!m_parent_at_drop.isValid()) return;
+	beginInsertRows(m_parent_at_drop, first, last);
+}
+
+void ElementsCollectionModel::brr(ElementCollectionItem *eci, int first, int last)
+{
+	Q_UNUSED(eci);
+	if (!m_parent_at_drop.isValid()) return;
+	beginRemoveRows(m_parent_at_drop, first, last);
+}
diff --git a/sources/ElementsCollection/elementscollectionmodel.h b/sources/ElementsCollection/elementscollectionmodel.h
index 3d8410ed0..2e2610e95 100644
--- a/sources/ElementsCollection/elementscollectionmodel.h
+++ b/sources/ElementsCollection/elementscollectionmodel.h
@@ -62,10 +62,14 @@ class ElementsCollectionModel : public QAbstractItemModel
 	private:
 		XmlProjectElementCollectionItem *itemForProject(QETProject *project);
 		void elementIntegratedToCollection (QETProject *project, QString path);
+			//Use as slot in method drop mime data
+		void bir(ElementCollectionItem *eci, int first, int last);
+		void brr(ElementCollectionItem *eci, int first, int last);
 
 	private:
 		ElementCollectionItem *m_root_item;
 		QList <QETProject *> m_project_list;
+		QModelIndex m_parent_at_drop;
 };
 
 #endif // ELEMENTSCOLLECTIONMODEL_H
diff --git a/sources/ElementsCollection/xmlelementcollection.cpp b/sources/ElementsCollection/xmlelementcollection.cpp
index 72fa5ca3a..3dc38aa9f 100644
--- a/sources/ElementsCollection/xmlelementcollection.cpp
+++ b/sources/ElementsCollection/xmlelementcollection.cpp
@@ -360,7 +360,7 @@ QString XmlElementCollection::addElement(const QString &path)
  */
 ElementLocation XmlElementCollection::copy(ElementLocation &source, ElementLocation &destination, QString rename, bool deep_copy)
 {
-	if (!(source.isFileSystem() && destination.isDirectory() && destination.isProject() && destination.projectCollection() == this))
+	if (!(source.exist() && destination.isDirectory() && destination.isProject() && destination.projectCollection() == this))
 		return ElementLocation();
 
 	if (source.isElement())
@@ -401,10 +401,6 @@ bool XmlElementCollection::exist(const QString &path)
  * @brief XmlElementCollection::copyDirectory
  * Copy the directory represented by source to destination.
  * if destination have a directory with the same name as source, then this directory is removed
- *
- * WARNING
- * for now, only work if source is from files system
- *
  * @param source : directory to copy
  * @param destination : destination of the copy
  * @param rename : rename the copy with @rename else use the name of source
@@ -413,54 +409,75 @@ bool XmlElementCollection::exist(const QString &path)
  */
 ElementLocation XmlElementCollection::copyDirectory(ElementLocation &source, ElementLocation &destination, QString rename, bool deep_copy)
 {
-	QDir source_dir(source.fileSystemPath());
-	if (!source_dir.exists()) return ElementLocation();
+	QString new_dir_name = rename.isEmpty() ? source.fileName() : rename;
 
-	QString new_dir_name = rename.isEmpty() ? source_dir.dirName() : rename;
+			//Get the xml directory where the new directory must be added
+	QDomElement parent_dir_dom = directory(destination.collectionPath(false));
+	if (parent_dir_dom.isNull()) return ElementLocation();
 
 		//Remove the previous directory with the same path
 	QDomElement element = child(destination.collectionPath(false) + "/" + new_dir_name);
 	if (!element.isNull())
 		element.parentNode().removeChild(element);
 
-	QDir dir(source.fileSystemPath());
-	QDomElement elmt_dom = QETXML::fileSystemDirToXmlCollectionDir(m_dom_document, dir, new_dir_name);
-	if (elmt_dom.isNull()) return ElementLocation();
 
-		//Get the xml directory where the new directory must be added
-	QDomElement parent_dir_dom = directory(destination.collectionPath(false));
-	if (parent_dir_dom.isNull()) return ElementLocation();
-	parent_dir_dom.appendChild(elmt_dom);
 
-	ElementLocation created_location(destination.projectCollectionPath() + "/" + new_dir_name);
+	ElementLocation created_location;
 
-	if (deep_copy)
+		//Copy with a file system collection source
+	if (source.isFileSystem())
 	{
-		//Append all directories of source to the new created directory
-		foreach(QString str, source_dir.entryList(QDir::Dirs | QDir::NoDotAndDotDot, QDir::Name))
-		{
-			ElementLocation sub_source(source.fileSystemPath() + "/" + str);
-			copyDirectory(sub_source, created_location);
-		}
+		QDir source_dir(source.fileSystemPath());
+		if (!source_dir.exists()) return ElementLocation();
 
-		//Append all elements of source to the new created directory
-		source_dir.setNameFilters(QStringList() << "*.elmt");
-		foreach(QString str, source_dir.entryList(QDir::Files | QDir::NoDotAndDotDot, QDir::Name))
+
+		QDir dir(source.fileSystemPath());
+		QDomElement elmt_dom = QETXML::fileSystemDirToXmlCollectionDir(m_dom_document, dir, new_dir_name);
+		if (elmt_dom.isNull()) return ElementLocation();
+
+		parent_dir_dom.appendChild(elmt_dom);
+
+		created_location.setPath(destination.projectCollectionPath() + "/" + new_dir_name);
+
+		if (deep_copy)
 		{
-			ElementLocation sub_source(source.fileSystemPath() + "/" + str);
-			copyElement(sub_source, created_location);
+				//Append all directories of source to the new created directory
+			foreach(QString str, source_dir.entryList(QDir::Dirs | QDir::NoDotAndDotDot, QDir::Name))
+			{
+				ElementLocation sub_source(source.fileSystemPath() + "/" + str);
+				copyDirectory(sub_source, created_location);
+			}
+
+				//Append all elements of source to the new created directory
+			source_dir.setNameFilters(QStringList() << "*.elmt");
+			foreach(QString str, source_dir.entryList(QDir::Files | QDir::NoDotAndDotDot, QDir::Name))
+			{
+				ElementLocation sub_source(source.fileSystemPath() + "/" + str);
+				copyElement(sub_source, created_location);
+			}
 		}
 	}
 
+		//Copy with a xml collection source
+	else
+	{
+		if (!source.projectCollection()) return ElementLocation();
+
+		QDomNode other_collection_node = source.projectCollection()->child(source.collectionPath(false)).cloneNode(true);
+		if (other_collection_node.isNull()) return ElementLocation();
+
+		QDomElement other_collection_dom_dir = other_collection_node.toElement();
+		other_collection_dom_dir.setAttribute("name", new_dir_name);
+		parent_dir_dom.appendChild(other_collection_dom_dir);
+
+		created_location.setPath(destination.projectCollectionPath() + "/" + new_dir_name);
+	}
+
 	return created_location;
 }
 
 /**
  * @brief XmlElementCollection::copyElement
- *
- * WARNING
- * for now, only work if source is from files system
- *
  * @param source : element to copy
  * @param destination : destination of the copy
  * @param rename : rename the copy with @rename else use the name of source
@@ -470,9 +487,24 @@ ElementLocation XmlElementCollection::copyElement(ElementLocation &source, Eleme
 {
 	QString new_elmt_name = rename.isEmpty() ? source.fileName() : rename;
 
-	QFile file(source.fileSystemPath());
-	QDomElement elmt_dom = QETXML::fileSystemElementToXmlCollectionElement(m_dom_document, file, new_elmt_name);
-	if (elmt_dom.isNull()) return ElementLocation();
+	QDomElement elmt_dom;
+
+		//Copy with a file system collection source
+	if (source.isFileSystem())
+	{
+		QFile file(source.fileSystemPath());
+		elmt_dom = QETXML::fileSystemElementToXmlCollectionElement(m_dom_document, file, new_elmt_name);
+		if (elmt_dom.isNull()) return ElementLocation();
+	}
+		//Copy with a xml collection source
+	else
+	{
+		QDomElement other_collection = source.xml();
+		elmt_dom = m_dom_document.createElement("element");
+		elmt_dom.setAttribute("name", new_elmt_name);
+		elmt_dom.appendChild(other_collection.cloneNode());
+	}
+
 
 		//Remove the previous element with the same path
 	QDomElement element = child(destination.collectionPath(false) + "/" + new_elmt_name);