Started fiddling with an Elgato Stream deck. A nice 15-illuminated-button pageable box.
It IS possible to use it with FLX S, You need to connect a PC/laptop running windows 10 and Zeros monitor. Connect the Streamdeck to your PC/laptop, and configure some keys.
I chose to configure the "missing" handy keys on a FLX S . e.g. arrows, home, highlite, a fast @ , a thru , and so on. Choose yourself.
It is only possible to use the standard keyboard shortcuts. Half of them are on the desk itself anyway, the other half I chose to put on the streamdeck now.
Saves learning them by heart, saves using the Z-key, saves use of shift and ctrl buttons and/or putting stickers on your keyboard keys.
Nice experiment, and it works fine. Only the fact you need a PC/laptop running next to your FLX S is a bit of overkill. And for the about 15 buttons you are probably going to use, a bit of an investment.
I own the thing anyway, mainly for use with Qlab.
For fullsize FLX it should be possible to make a MIDi-controller out of it. via the "Companion"-program which works together with the Elgato software. Though I think it needs some more type of whizzkid than I am. As far as I know, companion already has some ready 'personalities' for some existing other brand lighting desks.