checkboxes for the left bar (categories, tags)

[mrpaco]

It would be great if checkboxes could be added to the left bar to categories, status, trackers and tags so we could select instead of only one of each, multiple.

for example if I want to see the torrents from 2 different tags at the same time but nothing else, I can't, qbt only let me select one tag limiting us on how to manage our torrents. Or if I want to see every torrent but the ones tagged with XXXXX or YYYYY, I can't either.

[alchemi183]

I like this idea. It would be useful to me as well.