Guide rows in the Layers panel drag (the selected guides when the row is
one of them) onto any row of another layer, which lights up, and go to
that layer in one undo step (guide.setLayer takes indexes). Guides on no
layer, from files saved before guides had layers, go on the top visible,
unlocked layer when a document opens or is reverted.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CC5DiGJEZ5ADaQMBEQk4W1