I have managede to solve almost all of it. with use of an example I found using action call back.
I use the text below: h=zoom; set(h,'ActionPostCallback',@mypostcallback); set(h,'Enable','on');
Everything works but when I add the text below "dynamicDateTicks([], [], 'dd/mm');"
I dont get my extra subplot anymore. I guess the "dynamicDateTicks function steels the zoom that is send out in some way...
Sorry for describing it porely...
Kind Regards, Fredrik