Add Group of filters

[zongojim]

Thanks a lot for this great tool ! Would be nice if we can create group of filtering.

Lets take a stupid example with the list below. We can make some filter foreach kind of animal or objects. I would imagine that on top of that, we can add a group for animals and a group for objects. When you click on animals, it will display only animals, then you can fileter them by names.

Red Lion White paper Black Cat small Dog brown table Red paper red Shark Big chair Pink Lion big Fish small Dolphin red pen small chair blue Shark Green Lion

The xml could be : <?xml version="1.0" encoding="utf-8" standalone="yes"?>

[zongojim]

ListFiltering.txt

[DavidAnson]

Seems like a duplicate of #2 and/or #3.