So I'am quite organised man and i like everything organised 
But to organize maps in osu! is quite big task. So I would like (and many other people would appreciate) if:
1. You could give your currently owned skins a folder (or something like that) where in 1 folder you could store like only "meme" skins or other specific thematic skins
2. You could add many maps to collections not only 1 or 1 set (Using checkbox'es ? )
TL;DR
1. Folders for skins
2. Better map adding to collections
But to organize maps in osu! is quite big task. So I would like (and many other people would appreciate) if:
1. You could give your currently owned skins a folder (or something like that) where in 1 folder you could store like only "meme" skins or other specific thematic skins
2. You could add many maps to collections not only 1 or 1 set (Using checkbox'es ? )
TL;DR
1. Folders for skins
2. Better map adding to collections