A floating set dropped on the left edge of the icon column or of a dock
column docks as a new dock column there, building a multi-column dock.
Its groups stack, take tabs and tear out as in a floating set; the strip
along its top floats the column again and its × docks its panels where
they live. Popped-out icon panels open left of the dock columns. Columns
are kept in preferences and workspaces; window.panel.dock takes column.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CC5DiGJEZ5ADaQMBEQk4W1
redrun6767andClaude Opus 5.5
77667945b1