why cant you just use one of the channels as an on off switch ?
on toxic i use futaba 2.4ghz, the 3rd channel goes into failsafe if no signal is received, this channel
was suppost to be a throttle for a heli but its connected to a switch on my transmitter, it turns the robot on and off and that channel also turns my watty on and off aswell.
failsafe and remote switch all in 1 !
c u tomorrow.