Priority of audio from channel driver over network

Greetings:
I’ve been asked whether, when using app_rpt in duplex=2 or duplex=0 with linktolink=yes, if it is possible to have priority of RF stations, either with usbradio, simpleusb, USRP, etc. over network traffic. I’m thinking something like the logic used for linkmongain, but when a local station transmits locally to the node when it is in transceive, such that the audio of a network-based transmission is reduced in volume, but is still audible. I could perhaps do some odd arrangement with a private node and the USRP channel driver to make this behavior happen, but if there is an official way to do this, I don’t know of it.

In rpt.conf

linkmongain = -22                   ; Link Monitor Gain adjusts the audio level of monitored nodes when a signal from another node or the local receiver is received.
                                    ; If linkmongain is set to a negative number the monitored audio will decrease by the set amount in db.
                                    ; If linkmongain set to a positive number monitored audio will increase by the set amount in db.
                                    ; The value of linkmongain is in db. The default value is 0 db.

However, I am not sure you can prioritize anything outside of between local and linked nodes. And this only works when the link is in ‘monitor mode’.