Local control of select variables while in realtime mode

i'm not 100% sure whether this is a feature request, a bug or neither, anyway: i am making an ambilight system for my primary desktop computer, the room i'm in is bright a lot of the time, but quite dark at night, so i want to add a switch or anything acting as one (such as a 3 pin digital photoresistor module) to control the master brightness, without interrupting the stream of data at all. currently, the master brightness slider works perfectly fine both in WLED mode, and in Realtime mode, both through the web portal and the app. the physical switch works in WLED mode but is completely ignored in Realtime mode, as it relies presets. Lor 1 or 2 do not solve my issue, since 1 does nothing as the stream never ends, and 2 ends the stream.

my ideal solution would be a checkbox in the preset menu or elsewhere, that enables a preset to be loaded while actively in realtime mode.

if the preset system is too hard to realistically change to this end, a hardware override in the "Time & Macros" menu would also be excellent, specifically for master brightness, completely bypassing the presets system. in my ideal version of this implementation, the option would offer limited variables for the two states of a binary switch, such as the brightness to set per state (eg. 0 and 255) as well as a time for how long it would take to hit the set level from its current state, to prevent flashes or rapid flickering in case of a poorly implemented light sensor etc.

if this already exists i apologize for wasting your time, i have spent days at this point, searching the internet and asking questions, but have found no concrete solution.