Feature Request: group diffs of a map by map names; option to delete folders & files from maps inside collections

[MaylaVettel]

group diffs: (currently, searching for "true - soundscape" in my map list, appears several maps and their corresponding difficulties with the title, without a grouping)

this is a serious visual issue, because in the screenshot above there are two "Meg's Extra" difficulties, with the same BG's and the same diff name, but different star rating
could there be a simpler view as in the schematic below?

"Search for "TRUE - Soundscape""
│
Results:
├─ TRUE - Soundscape
│   ├─ diff1
│   ├─ diff2
│
├─ TRUE - Soundscape
│   ├─ diff1
│   ├─ diff2
(etcetera)
(it would be nice if this view in the schema were implemented inside the view of maps in a collection)

another feature request, would be the options to delete maps (the folders, the files themselves) from the collections, and maybe an option to "delete all visible beatmaps" by right clicking on the collection (to delete the files) without opening osu to do this or one by one (I have thousands of maps in a collection, I would like to delete all maps (the files and folders of the maps themselves) but I can't, currently the option to delete all visible maps directly from the osu! client does not work for me)