Tx16s as a joystick doesn't work

@rafael.lehmkuhl I’d like to clarify if button actions work now for surface boat profile? Should I create corresponding variables in data like and assign mavlink commands to them?
I’ve tried unsuccessfully the next: I set up my tx16s as a joystick, and one of 3 pos switches as a normal 3 pos button (ind: 1,2,3). The cockpit detected such buttons without issues. I assigned mavlink protocol: “Custom 1“, “Custom 2“, and “Custom 3“ to them, respectively. I consider that the cockpit should send MAVLink commands such as USER etc. But my Lua script in my FC has never caught anything… May I have missed something? Cockpit -1.16-beta.11.