Hotspot Bypass for another wifi router (subnet)

Hello, I have to connect new wifi router (NEW_WiFi#2 on pic)_ to client network. He uses Mikrotik and feature Hotspot/Trial User.
I need Hotspot exclusion for new wifi router (subnet) and clients.

I personally have no experience with Mikrotik, but i found some tutorials hotspot exclusion by MAC .
If I set up bypass for new wifi router by MAC in IP Bindings, it’ll exclude routers clients too?

Is there any other way to solve this situation?
Thank you for your advice.

anyone?