3xUI + MasterDNS how Inbound

Greetings!

I'm trying to set up a combination of MasterDNS (through which data is sent to the server) and 3xUI (through which data should be sent to an external server). However, I'm unable to configure the panel to see the incoming traffic through MasterDNS. Can you please provide guidance on how to set up this combination? I've already spent a lot of time trying to figure it out. It seems that I lack the necessary knowledge. Thanks!