How do I create a record count-off?

How do I tell Ardour to count off x seconds before starting to record? I’m hoping this can be done without inserting silence at the beginning of the session.

Easiest way is to use a punch in marker, set it X seconds into the session, enable punch, and rec arm appropriately and start transport. Note that you won’t start recording at the top of the session in this case, you would start recording X seconds in.

         Seablade

That should work. Thanks!