I think it would be convenient to be able to view the files contained in the files folder organized by type and name.
Create groups (right mouse button - "Add Group"):
You could create sub-folders too:
Within them, files are sorted in alphabetical order.
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Erel, in the context menu "Remove Group" is missing (you can press Del on keyboard, I know)
EDIT: there is "Remove selected", clicking on an empty space:
self "Like"d ?