I did four reports and I used with Case... as you said before my quastion.
My quastion was how can I do it with ONE report (something like this in the code: case optgroup=1 cfilter1='aaa',cfilter2='bbb'..., and to change the report fields and field names to veriables - it's not problem to do it with one group level, my problem was with two levels especially with the report fields names).
Eventually - I think that it's big problem.
Chaim