GMOD: Darkrp entities jobs blacklist

I know that you can change what jobs can buy certain entities with

allowed = { TEAM_JOBS }

But for the sake of simplicity, is there a way to list who isn’t allowed via custom check or something similar? On printers I want everyone except cops to buy.

AddEntity("Quartz Printer", { 
ent = "quartz_money_printer", 
model = "models/props_c17/consolebox01a.mdl", 
price = 1000, 
max = 2, 
cmd = "buyquartzprinter", 
notallowed = { TEAM_COP } --Eh?

Can you stop making separate threads? put them all into one and post it…