I too would like some simple instructions pointing out where buttons and menus are located. I want to utilize this but at a quick glance, I was unsure where certain features were such as making a custom group (is that even a thing here?)

There is now manual group creation at the moment. But this mod supports Colony Groups mod. Colony Groups allows to create colonist groups and Grouped Pawns Lists supports them.

Also, buttons are at the bottom right of table in tabs containing pawn tables

There is now manual group creation or there is no manual group creation?

Manual groups is in the plans section so its not here yet, but you can click the cogwheel at the bottom right to sort by premade selections

If you use the mod '[LTO] Colony Groups', theres going to be a extra selection on the cogwheel that sorts according to your own groups