A facility like that already exists in SGPro, though maybe you have something different in mind. I use a home-made adjustable panel and I can set panel levels and exposure times on a per-filter basis, or for “no filter” for OSC cameras, in the profile and that way I can keep a set of flat-darks without having to worry about variations in exposure times. I have an ASI294 camera and I want to make sure that the flat exposures are 3 seconds which meant manually adjusting the panel to hit the required ADU taget, but once I’d done it, I set the values into the profile and each time I run a set of flats, the exposure time and panel brightness are dialled in automatically. Maybe what you had in mind was the ability to fix exposure times and let SGPro adjust the panel brightness to hit a given ADU target, and I admit that could be useful. I also agree that it should be fairly straightforward to search on panel brightness or exposure time and give the user the option of which to fix.