now it's pretty fine but missed an important filter category:
PATH
like FSD i've created some directory on hd to refine showing list of game like COOP for co-operative games i then assigned this path on a tab of FSD to fast access on CoOp games.
also missed from FSD:
i assigned a tab for a special PATH: external USB.
example: if i have some external hd's with games in the tab of FSD they show only the games of the hd currently attached and NOT the others.