Detect an account that is being used as a signal source

Hello developers, I'm a new MQL4 programmer, looking for assistance of more experienced developers

I want the code or method that detects if an account is being a signal source

Or if it's being a copy trading master account in brokers like:

roboforex.com, octafx.com, or darwinex.com

I've talked to the broker and they say that they don't have that information to send to the MT4 (Like AccountName() or AccountCompany()) It's a thing that's done in the Metatrader server, so maybe there is a way to detect it with MQL4