Hi there.
Do you know you can do the exact same thing by just clicking on the add section with a blueprint on your cursor?
I discovered that recently ;)
(Unless I missed something...)

Ahahaha no I did NOT know that LOL :-D

Anyway the mod still offers some functionality and more is planned in the future; for example right now if you hold the blueprint and click many times on the janitor button, it will add item requests for each time you click (or Shift+click to add 10x required items).

In the future it'll handle books as well but it can't do that right now because I need scripting changes from Wube. Fingers crossed!