Tree of collections where you can put some small subcollections into one would be really handy
example
![](https://i.ppy.sh/2d7d6d97c66e477e59b6887b22a56dae11b212d5/687474703a2f2f7075752e73682f364c5342302e6a7067)
Personally I have more than 100 collections now and it's rather bothersome to search something through this.
example
Personally I have more than 100 collections now and it's rather bothersome to search something through this.