Fork A child-free week in New York at a meaningful point — your fork copies the full history up to that turn, then continues in your own direction.
The CLI can fork at this turn and immediately resume the conversation locally:
branchlm fork 2bdd8757-0934-4e3c-8e6b-2f29d57689d8 --turn 16 --continue --name "A child-free week in New York (fork)"
Fork points snap to the nearest user prompt at or before the turn you pick.