Ah, ok, I'm with you.
Good theory, but how would you work it in this case....
You apply preset 1, which changes exposure, contrast, brightness and shadows. That then gets toggled on.
You then apply preset 2, which changes clarity, brightness, and sharpening. That then gets toggled on.
What would happen with the toggle on preset 1? It's no longer applying that preset, as preset 2 has changed preset 1's brightness setting. Thoughts?
And then what if you changes a sharpening setting manually? Do you untoggle preset 2, as those settings are no longer as per the preset. Thoughts?
They're not currently toggled as it's a one off application of the preset settings, but I'm willing to put forward your ideas.