Q Light Controller+

I use chasers to cue our shows .. which works well .. however I've run into a fun issue.. was wondering if anyone had come up with a solution? How to set a "level" for an "RGB Matrix" in a Chase sequence? I have ~10k LEDs across ~48 DMX universes on steps .. and I have some neat matrix displays used across them. I know I can use 'Fade In' and 'Fade Out' .. and do heavily .. to control some brightness .. and I have create a Channel Control for the devices to control relative levels which will override what the matrix is sending .. but I can't find a way to "cue" a relative level for the matrix? EG .. set an intensity for the Matrix. Any ideas?

dim levels set to full and use a submaster to control the brightness?
If the submaster is bound to a channel in a loopback universe you can set it's level inside a cue...

Hmm .. that might work .. i'll give it a try .. the other thing i've been doing is just creating matrix's with the required levels .. but it would be nice to be able to do it independently