Joerg,
Please open the file: CuteSoft_Client\CuteEditor\Configuration\Shared\Common.config and modify the following code:
<define name="Undo" text="[[Undo]]" command="Undo" hotkey="CTRL+Z" />
<define name="Redo" text="[[Redo]]" command="Redo" hotkey="CTRL+Y" />
<define name="Cut" text="[[Cut]]" command="Cut" hotkey="CTRL+X" />
<define name="Copy" text="[[Copy]]" command="Copy" hotkey="CTRL+C" />
<define name="Paste" text="[[Paste]]" command="Paste" hotkey="CTRL+V" />
<define name="Delete" text="[[Delete]]" command="Delete" hotkey="DELETE" />
<define name="SelectAll" text="[[SelectAll]]" command="SelectAll" hotkey="CTRL+A" />
asp.net Chat http://cutesoft.net/ASP.NET+Chat/default.aspx
Web Messenger: http://cutesoft.net/Web-Messenger/default.aspx
asp.net wysiwyg editor: http://cutesoft.net/ASP.NET+WYSIWYG+Editor/default.aspx
asp wysiwyg html editor: http://cutesoft.net/ASP
asp.net Image Gallery: http://cutesoft.net/ASP.NET+Image+Gallery/default.aspx
Live Support: http://cutesoft.net/live-support/default.aspx