Apply additional local adjustment preset without deleting existing local adjustments

This was a very quick and dirty example.

Ok i will show you tomorrow.( I am watching a movie now.
Base principle
1 make your settings rightmouse make preset from present settings.
2 go in to preset edit.
Turn off all what’s not needed.
Save preset.
This is a partial preset.

3 one problem: A preset local adjustment pallet is all over the old localsetting.
So a preset is replacing former settings.
You could try making a virtual copy and place there the second preset.
Then use selective copy paste to place this in the master.
(i just thinking of this no testing done.)