Visiting cursor

A visit lends one machine's mouse and keyboard to another without moving the other machine's own cursor. Push the pointer past the edge that faces a paired host and it parks there, frozen. From then on your mouse drives a coral visitor on the host, labelled with your machine's name, the way a screen share shows a second cursor. Your keys type on the host. Nothing on the host asks for a new permission: the visit rides the companion bridge's pairing, and needs the input.trackpad capability that pairing already grants.

A visit ends when:

• the visitor goes back off the edge it came in by;
• you press ⌃⌥⌘ Home, or pick Bring Cursor Home from the menu bar;
• someone at the host runs lattices-host mouse-home (see Ending a visit from the host);
• the channel drops, or either side stops hearing from the other for 6 seconds.

Your own cursor never left, so ending a visit can't strand it.