Such as:
-See who shared the file/folder
-Additional menus :
--Shared with my
--Shared by me
--Public links (Display when it was made, how many times has it been downloaded)

Public links
To be able to add expiration date
Limit download to X times then remove link and report abuse

Recicle bin please!

Detail file logs, sush as:
Creation date, sent date, shared date, etc