It is strongly required to add a convenient delete button

When I separate a file with hundreds of sub-files, when I want to delete one or more sub-files, I find it in the list and click Delete, which is very laborious. I have to search back and forth one by one. Can you add a convenient delete key?


Action to complete selection would be fine for me.
Select several objects and hit the trash can - all objects are deleted.
Same for visible, move, rename and duplicate.
Saving selection sets would be extremely useful as well together with this function.