There might be an easier way, but I wanted to utilize my 6 button switch on my RadioMaster TX16S to control my vTx power. Since it isn't a Low, Med, & High value I had to go into the programming tab in inav 3.0 and setup some Logical Conditions.
► RadioMaster TX16S in the Video: https://usa.banggood.com/custlink/Dmv...