Not sure if you support 1.12 or not but none of this mod's features are working.
Holding space, left shift, left menu & left/right-clicking while hovering over items, doesn't do anything, as if this isn't even installed.

Also, what format do we use to specify items in the whitelist/blacklist.

This is extremely unspecific

Read the issue.

Holding space, left shift, left menu & left/right-clicking (Default keybinds upon install) while hovering over items, doesn't do anything.

Still, I'm gonna need logs, videos, folder structures, anything.

Logs contain nothing.

Apparently I'm a complete dumbass.