BRD_ALT_CONFIG for omnibus f4 pro v3

I use ardurover(v4.0:boat) using omnibus f4 pro v3.
I am going to use a mavlink-wifi bridge telemetry on ardurover.
I can read on manual that it was possible to use BRD_ALT_CONFIG(0 →3) to configure second telemetry using rssi(tx)& pwm5 pads(rx).

Will you please teach me following question.
I can’ t find BRD_ALT_CONFIG on ardurover.
I am looking for it on full parameters list (on latest qgroundcontrol) but it is not there.
Can’t I use it on ardurover?
(But I can find it on arduplane + omnibusf4 v2)

Thank you…