I don't have my Element in front of me, but on my Nomad, if you hit the "About" button, then "setup" in the menu, it will show you your software version and Fixture Library version (among other things).
Could you use a monitor / display pressed directly behind the glass instead of bothering with a Pepper's Ghost assembly? So long as the monitor frame is larger than the dimensions of your TV screen, you won't see the monitor, you will have much less light drop-off, and you won't have to worry...
Welcome Ali. It can be confusing, especially when the Channel Mode numbers don't correspond with the number of channels being controlled. Glad you got it all happy.
And how might one categorize colour metamers where there's several ways of mixing "the same" colour with different LED ratios? R80a, R80b, R80c, etc?. (*tip of the hat for the ETC Virtual CUE 2022 presentation that kinda blew my mind on metamers...)
The Express is pretty LED / "multi DMX channel" hostile just because of its age. If you have spare faders, I would definitely use one fader per DMX channel to control your LED lights. If you're low on faders by the time you consider your conventional lighting, you can use higher channels that...
Can you attempt route some signal to those outputs and then put a meter on it? If it's one or two volts (I believe) it's line level. Substantially above that, it's from an amplifier. Do you have a passive speaker that you could plug into the Speakon jack? If you hear something, it's a...