Hi,
I have a site which I should continue to work on.
There are contact data in (I think) a shortcode.
See: http://prntscr.com/iudizk
When the shortcode [kontakt] is inserted adress and email are being displayed.
Copying the shortcode shows adress and email twice 
But where can I edit the content of the shortcode?
You can delete this posting. Just after posting I found the solution in a plugin
that has nothing to do with cornerstone.
Thank you very much.