Total noob to this level of HA - so bear with me :-).
I’ve just added the Remotec ZRC-90 Scene Master and have it working. What I’d like to be able to do though is to use each button as a toggle switch - i.e. use it to control lights and if the light is off, turn it on and vice versa. I am guessing I need a smartapp to do this but have absolutely no idea where to even start with that. Any help is greatly appreciated.