tvhat and usb dvbt on same rpi

i have tvhat and a usbdvbTV pen on my rpi.

how i can use 2 different mux using both dvbt on tvheadend?

Attach same network with muxes on both tunners.

RPI do not have good usb support.

and how i can "tell" to tvheadend to use a mux from hat and a mux from usbpendvbt?

Go to devices and attach network identically for both devices.

So when I choice 2 channel with different muxes rpi will choice for me whic dvbtuner use?? In automatic?

Bingo

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Tvheadend