[Request] Collapsable Categories in the Duty Finder window.

I apologize if this has been mentioned before, but I didn't find anything on it in the first 6 pages and I did a search and most of the ones that came up were about the commense window or pop-up window.

The duty finder window is getting really full and it's only going to get more full as new expansions come out and are collapsed into the older content windows.

Looking at the window for Arr/HW/Stormblood raids and trying to find the Alliance raids for Stormblood it just made me think... I'd really like to click the header bar to collapse all these duties I'm not interested in right now.

It'd be even cooler if I could rearrange them and put all the alliance raids together, but I can understand if that's something that's not as feasible.