Restrict ability to print from Print Queue only#692

I am trying to set up Specialist accounts for my student assistants that can start print jobs from the Print Queue ONLY. As it stands, if I give them the “Can Print” permissions in the Settings then they can start prints from their own files as well as the Print Queue. They should only be able to Add to Print Queue, like any other user. Only once their print has been approved then they can start in printing their own files (just like any other users’s approved print in the Print Queue).

Live as of today! See changelog: https://suggestions.simplyprint.io/log