Hide Others, Lock Others and Outline Others left the layer they keep as
it was, so Alt-clicking the eye of a hidden layer hid everything and
Alt-clicking a locked layer's lock left it locked. As Illustrator's
Layers panel does, the layer clicked now shows (unlocks, previews) while
the others hide (lock, outline), in the same undo step.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>