Split panes side-by-side

A split-pane tab shows two SSH sessions side-by-side in the same tab. Useful when you’re cross-referencing two devices (a switch and the firewall in front of it; two halves of an HA pair).

Steps — open a split

Make sure the left session is already open (it’ll be the primary; the new session becomes the right pane).
Right-click the tab in the strip.
Hover Split right with…. A submenu lists every device in your inventory, with the current tab’s device shown first (you can split with itself for a second session of the same host).
Click the device you want as the right pane.
Transit AI opens a new SSH session to that device and renders it as the right pane.

Resize

Drag the vertical divider between the two panes left or right. The percentage split is per-tab and resets to 50/50 if you reopen the tab.

Unsplit

There’s no explicit “unsplit” command. Close the right pane to return to a single-pane tab:

Click Disconnect in the right pane’s header. The remote session ends; the right pane disappears.
OR right-click the right pane’s tab area — actually the right pane has no tab of its own. The X on the primary tab closes both sessions (cascading close); use that only when you want to close the whole tab.

What’s the same as a non-split tab

Both panes have their own scrollback, search overlay, and paste confirmation.
Per-device preferences (syntax highlighting, quick copy/paste) apply to each pane independently based on its device.
Press Enter in either pane to reconnect it if its session ends. The other pane is unaffected.

What’s different

Tab labels show only the primary device’s ID. The right pane’s device isn’t surfaced in the tab strip.
The AI sees both sessions as peers when it lists your open sessions — there’s no notion of “split” at the backend level.