Re: X32 + Waves + Light Controller + MIDI
Yes, but I think there are still bugs in the implementation that prevents you from doing it reliably.
I would assume so, the midi that the X32 responds to is program change <scene number> on channel 1. If you can set the other two to respond to the same, or send multiple midis, then you are fine.
There are midi translator programs that can send multiple midis from receiving a single one, so there are always solutions.
It all depends on what you want to do/need to do. The trick is finding the method that fits best with your ideal workflow and trigger from something you are already doing in that workflow.
Is scrolling thru' the setlist and selecting a song part of your current routine? Then find a way to have that operation be the trigger for everything.
Some show control software makes this easy, you can trigger events, playback midi, sound and video, open documents (lyrics and sheet-music).
