First you need your synth specs to know if it can send “edit buffer” (the current state mainly) and must know the edit request sysex.
There is new methods Atom builds in mopho panel where you can take edit and assign to ctrlr modulators but it’s Under progress . there is a demo panel too “dump&utilities”…There is a lot or exemples
there of the forum and uploaded panels for “special” messages
You can look at “LUA&demo panels question” i’ve a method in it a the end unfortunely it is not good for me because my synth has so much dumps at once but that works
But basically you must do in “called when midi message received” in panel properties :
the basic thing :
my_byte1 = midi:getLuaData():getByte(5)
you get a byte from the synth dump ( 5 is the 6th byte , F0 and F7 does not count)
you can get a range too (see my method in the other post ) and assign to a range of mods .
panel:GetModulatorByName("your mod"):SetValue(my_byte1 , false,false,false)