I did read this answer ZF2, what's the best practice for working with Vendor Module's Form classes?. So it's mainly clear how to change configurable parts of the vendor module, but what do I do if in zfcUser module I want to add new functionality to the Entity/User?
In short I want to check user role, I've added to DB field, what's the best way to do that? Maybe I should do it somewhere else and not in zfcUSer if so where?