Currently under "Library" > "Home" > " Add Shelf" I have quite a few options, however one option i really miss is "Theoretical Size on Disk", what i mean is that it sorts the game owned by size on disk regardless if they are currently installed or not.
( This would help me immensely sorting my games. )

Edit: An Option to sort by Install Folder/Drive would also be really huge, so i can see at a glance on which drive a game is stored.

thank you for your attention, and have a nice day.