Hello:

 

Plage try this script:

 

 

<script runat="server">

protected override void OnInit(EventArgs e)
{
    base.OnInit(e);

    Editor1.Attributes["oninitialized"] = "Client_Handle_Editor_Initialized(this)";
}

</script>
<script>
function Client_Handle_Editor_Initialized(editor)
{
 editor.GetDocument().onkeydown=function()
 {
  var event=editor.GetDocument().parentWindow.event;
  if(event.keyCode==13)//ENTER
  {
      editor.ExecCommand("PostBack",false,"Save");
     
      event.cancelBubble=true;
      event.returnValue=false;
  }
 }
}
</script>

 

 

Regards , Terry .