diff --git a/items/xqitem.cpp b/items/xqitem.cpp
index dc9eb11..cc4a622 100644
--- a/items/xqitem.cpp
+++ b/items/xqitem.cpp
@@ -37,18 +37,18 @@ XQItem::XQItemFlagMap XQItem::s_ItemFlagMap
 
 XQItem::XQItemDataRoleMap XQItem::s_ItemDataRoleMap
 {
-  {"ItemType", ItemTypeRole},
-  {"Content",  ContentRole},
-  {"RenderStyle", RenderStyleRole},
-  {"EditorType", EditorTypeRole},
-  {"ItemFlags", FlagsRole},
-  {"UnitType", UnitTypeRole},
-  {"ContentFormat", ContentFormatRole},
-  {"FlagsRole", FlagsRole},
-  {"Icon", IconRole},
-  {"FixedChoices", FixedChoicesRole},
-  {"DataNode", ContentNodeRole},
-  {"SheetNode", SheetNodeRole}
+  {"ItemTypeRole", ItemTypeRole},
+  {"ContentRole",  ContentRole},
+  {"RenderStyleRole", RenderStyleRole},
+  {"EditorTypeRole", EditorTypeRole},
+  {"ItemFlagsRole", FlagsRole},
+  {"UnitTypeRole", UnitTypeRole},
+  {"ContentFormatRole", ContentFormatRole},
+  {"FlagsRoleRole", FlagsRole},
+  {"IconRole", IconRole},
+  {"FixedChoicesRole", FixedChoicesRole},
+  {"DataNodeRole", ContentNodeRole},
+  {"SheetNodeRole", SheetNodeRole}
 };
 
 // No bi-map needed here, qmap.key() is sufficient for the job
@@ -388,7 +388,12 @@ bool XQItem::isHeaderStyle()
 }
 
 
-
+QString XQItem::dataRoleName(int role)
+{
+  if( role < XQItem::NoRole && model() )
+    return model()->roleNames()[role];
+  return XQItem::fetchItemDataRoleName(role);
+}
 
 QVariant XQItem::data(int role ) const
 {
@@ -470,7 +475,8 @@ QVariant XQItem::data(int role ) const
 
 void XQItem::setData(const QVariant& value, int role )
 {
-  //replaceAttribute( XQItem* item, XQItem::ItemDataRole role, const QVariant& newValue)
+
+  //qDebug() << " -- item set data: " << value.toString() << " for: " << role  << ": " << dataRoleName(role);
 
   //emitDataChanged()
   switch(role)
@@ -489,19 +495,34 @@ void XQItem::setData(const QVariant& value, int role )
       itemType().replaceAttribute( this, value, role );
       break;
 
-    case ContentNodeRole:
-    case SheetNodeRole:
-
-    case TypeKeyRole:
     case Qt::DisplayRole :
     case Qt::EditRole :
     // return the raw, unformatted data
     case ContentRole:
+    {
+      //qDebug() << " -- item set data xxx: " << value.toString() << " for: " << role;
+      break;
 
+      QString* contentPtr = QStandardItem::data( XQItem::ContentRole ).value<QString*>();
+      if(contentPtr)
+      {
+
+        contentPtr->operator=( value.toString() );
+      }
+      return;
+    }
+
+    // what to do here?
+    case ContentNodeRole:
+    case SheetNodeRole:
+    case TypeKeyRole:
     default:
-      QStandardItem::setData( value,role);
+      break;
 
   }
+
+  QStandardItem::setData( value,role);
+
 }
 
 
@@ -534,6 +555,8 @@ int XQItem::fetchItemDataRole( const QString& dataRoleKey )
 
 QString XQItem::fetchItemDataRoleName( int dataRole )
 {
+  //if( dataRole < XQItem::NoRole)
+  //  return this->model()->
   return s_ItemDataRoleMap.key(dataRole);
 }
 
diff --git a/items/xqitem.h b/items/xqitem.h
index 3877712..7f219dd 100644
--- a/items/xqitem.h
+++ b/items/xqitem.h
@@ -225,6 +225,7 @@ public:
   bool isHeaderStyle();
   // ...
 
+  QString        dataRoleName(int role);
   QVariant       data(int role = Qt::DisplayRole ) const override;
   void           setData(const QVariant &value, int role ) override;
 
diff --git a/items/xqitemdelegate.h b/items/xqitemdelegate.h
index 5ef16ae..f3b706b 100644
--- a/items/xqitemdelegate.h
+++ b/items/xqitemdelegate.h
@@ -40,6 +40,7 @@ public:
   void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
   QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const override;
   QWidget* createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
+
   void setEditorData(QWidget *editor, const QModelIndex &index) const override;
   void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override;
   void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
diff --git a/model/xqcommand.cpp b/model/xqcommand.cpp
index 9245322..e23cdd4 100644
--- a/model/xqcommand.cpp
+++ b/model/xqcommand.cpp
@@ -105,6 +105,7 @@ void XQCommand::saveNodes( const QModelIndexList& list )
   }
 }
 
+
 //! erzeugt einen string aus dem command-type, fürs debuggen.
 
 QString XQCommand::toString()
diff --git a/model/xqcommand.h b/model/xqcommand.h
index b1c0c7a..93608e7 100644
--- a/model/xqcommand.h
+++ b/model/xqcommand.h
@@ -27,6 +27,9 @@ struct XQNodeBackup
   XQNodePtr contentNode;
 };
 
+//!
+//! \brief The XQNodeStore class
+//!
 class XQNodeStore : public QVector<XQNodeBackup>
 {
 
@@ -37,8 +40,9 @@ public:
 
 };
 
-// Das command enthält immer auch die betroffenen items
-// ist also auch eine SavedNodeList
+//! Das command enthält immer auch die betroffenen items
+//! ist also auch ein node store
+
 class XQCommand : public QUndoCommand, public XQNodeStore
 {