Small input on locking/Styles. Dont forget that Styles have a "Name" also that doesnt have to be "Orange...Slightly Orange". So you could set a simple color like orange as a set to use, then create styles that are very small increments away from this orange, possibly even indistinguishable by the eye, but name them, Lock level 1, Lock level 2 etc.... And manage them that way. Then groups for other stuff later. Keep the use alternate color setting so at a glance everything locked is obvious, but unlocking is done by name values.

FWIW