Litchi Pilot Build 125, not possible to see IR or Split-Screen on RC Pro

I have not the possibility to chose IR Picture or both (normal and IR) in Split Screen like in DJI Pilot 2 only if i choose Split-Screen in DJI Pilot 2 and then change to Litchi with forced stop of DJI Pilot 2 then i have the Split screen, but then i can not change between only IR or only normal Camera.
kindly regards Peter