Thanks for fast answering!
I added a sample of what I mean by ruler template.
http://i60.tinypic.com/6rlr7p.png
As workaround I can add dotted lines (like at the image), because I cant save the ruler configuration.
If saving not possible. Is there a way to put the dotted lines on a own layer or sth. to show/ hide them?
Thanks for your reply.
Mat