Hi there,thanks for your quick answers. I'll take Uwe's Kreuzeltest-Solution and use the frameboxes. Should be enough for me, since i only have to do a short test with 15 questions for my class.
If you're interested, I found this on ctan :
http://www.ctan.org/tex-archive/help/Catalogue/entries/examdesign.htmlBut this seems to be quite old and i didn't get LyX to notice the document class.
Regards Christian
