Windows & Splits
Boo can run several windows, each with its own workspaces, sidebar and plugins; settings, themes and bookmarks are shared. Inside a workspace, panes split the terminal area, and every pane holds its own tabs.
Windows
| Action | Shortcut / Menu |
|---|---|
| New window | ⌘N (File → New Window) |
| New workspace | ⇧⌘N (File → New Workspace) |
| Move workspace out | Window → Move Workspace to New Window, or Move to New Window in a workspace's context menu |
| Merge windows | Window → Merge All Windows |
A new window starts with one workspace in the default folder and opens cascaded from the current one. Merge All Windows moves every other window's workspaces into the current window and closes the others. Pinned workspaces, and the only workspace of a window, cannot be moved out.
Dragging between windows
- Workspaces: drag a workspace pill onto another Boo window to insert it at that position, or drop it outside any window to open it in a new window at the drop point. A window left without workspaces closes.
- Tabs: drag a tab onto a pane in another window to move it there. Dropping a tab outside every window tears it off into a new window, as a new workspace with the same folder. Moving the last tab of a workspace asks first, since the workspace closes.
- While dragging, the target window is highlighted. Hovering a workspace pill for half a second switches to that workspace, so you can drop into it.
Session restore
On quit, Boo saves every window: its workspaces, frame, full-screen state and sidebar. On launch all windows come back, and the window that was in front is in front again. Extra windows whose folders no longer exist are dropped. Session files from older versions, which held a single window, still restore.
Splits
| Action | Shortcut | Menu |
|---|---|---|
| Split right | ⌘D | Terminal → Split Right |
| Split down | ⇧⌘D | Terminal → Split Down |
| Select pane in a direction | ⌥⌘←/→/↑/↓ | Terminal → Select Pane |
| Next / previous pane | ⌘] / ⌘[ | Terminal → Focus Next / Previous Pane |
| Resize pane | ⌃⌘←/→/↑/↓ | Terminal → Resize Pane |
| Move (swap) pane | ⌃⇧⌘←/→/↑/↓ | Terminal → Move Pane |
| Zoom pane | ⇧⌘↩ | Terminal → Zoom Pane |
| Equalize splits | ⌃⌘= | Terminal → Equalize Splits |
| Close pane | ⇧⌘W | File → Close Pane |
The directional shortcuts match Ghostty's defaults. Resizing moves the divider by 10 points per step and stops at the minimum pane size. Moving a pane swaps it with its neighbor in that direction, and focus moves with it.
Zoom fills the workspace with the active pane. A Zoomed ⇧⌘↩ badge sits in the pane's top-right corner; click it or press ⇧⌘↩ again to show all panes. Selecting a hidden pane also leaves zoom, and resizing is disabled while zoomed.
Drag to split
Drag a tab over a pane to see where it lands:
| Drop target | Result |
|---|---|
| Tab bar | Inserts the tab at that position |
| Middle of a pane | Adds the tab to that pane |
| Edge of a pane | Splits that pane; the tab becomes the new pane |
| Outer edge of the workspace | New pane spanning that whole side (with two or more panes) |
| Middle of a pane, holding ⌥ | Swaps the two panes |
Press or release ⌥ during the drag to switch between swapping and adding. A pane left without tabs closes.
Scripting
Every action here is also available over the IPC socket (split_pane, focus_pane, resize_pane, swap_pane, zoom_pane, equalize_splits, new_window, move_workspace_to_new_window, merge_all_windows) and to agents through the MCP server.