Smart Audio max power question


Please advice how I can set Max power to my vtx via smart audio?

The vtx_power max value is 1000, but my vtx (rush tank solo) support more. When I set 1000, the vtx led is red meaning 800 mWt power level, but not max which is purple.

Also it would be nice to have a possibility define power modes for switch positions, like
Switch up - 400
Switch middle - 800
Switch down - 1600

Thanks and regards!