Session Groups

Organize your dock sessions into named groups.

Multi-select sessions: Cmd-click to gather sessions one by one, Shift-click to grab a range. Gathered sessions wear a violet mark in the dock column.
Create a group: right-click a gathered session and choose New Group from Selection. The name field opens right away so you can name it on the spot.
Collapse and expand: click a group header (or its chevron) to fold its sessions away. The sessions keep running; only their rows hide. A collapsed header shows how many sessions it holds.
Stay informed while collapsed: an amber dot on the header tells you a hidden session needs your attention, and a violet dot marks the group holding your live session.
Rearrange freely: drag sessions into a group, out of it, or between groups. A group whose last session closes disappears on its own.
Rename anytime: right-click the header and choose Rename.

Groups survive relaunch, and sessions from earlier versions load unchanged.

52 new unit tests cover the group model, the column layout, drag drop resolution, and persistence (including blobs written by older versions).
The headless self-test harness now exercises the full group lifecycle.