It's simply a bag you can only drag stuff into. I keep a bag at the start of my inventory that holds stuff like my focusing orb, some tinctures, RKs... I don't want stacks of things I'm harvesting going in there.
I'm about it. I walk around with so much raw material that it'd be nice to have a bag into which they didn't automatically slot themselves, so I can keep things a little more separated and easy to find. Kinda like a toolbox, maybe, but for, I dunno, user-set items.
I have a bigger bag that is a "travel pack", that contains stuff that I want with me whenever I leave my house. But I keep it at the right-hand end of my inventory, so stuff that I harvest goes into the other bags first.
But I would totally love to be able to limit which items could go this bag, and I'm all about user-customisable containers and making it easier to be organised, so +1
Love the idea, but maybe consider an alternate name. In parts of the English-speaking world, 'fanny' is slang for 'vagina'...then again...maybe that's perfect? Hmmm.