Display Various Report Layout, From 1

Hi to all,

My idea is to create one main report. Now, depending on the parameters the report is receiving, my matrix will shift and change groups/rows.

For example, using only one dataset:

Client1 sees only activities/costs
Client2 sees activity/costs/blabla1/blabla2
Client3 sees activity/costs/subtotal for costs/blabla1/blabla2/blabla3

Basically, without having to create various reports, I will have one major, dynamic report.

The best that I have accomplished is hiding the non-wanted column, although the end result isn€™t good.

Thanks in advanced, personally I think it€™s a good challenge€¦ Any suggestion?