Seems like we have the same lights and single AVIONICS switch
“Last question : I have a single bus for avionics… is it a way to use it for bus 1 and bus 2?? (Not every Cessna have 2 avionic buses in real life)”
Fix is to use “Set Avionics Master” mapped to [19]
“Only the landing night and strobe switches are reacting…”
See above in red