Were they all in at once as they ate? If so, close the door.Once again they are not in the coop. I put their food in there and seeded it well with dried crickets and meal worms. They went up ate stuff and came down the ramp again. I am sort of worried they will never learn unless I get them all in there manually, 13. Not sure how to accomplish getting all 13 in.
If most are in, maybe you can herd the last few in (walk toward them, they walk away from you, if you do it right they go where you want them to go.)
Otherwise, you can shut in as many as possible, then catch the rest one-by-one and toss them in.
I have found that a dish of wet food makes a good lure to get chickens in. (Just their usual chick food plus water.) They seem to like it well enough that they will stand there eating it, and they cannot pick it up and run back outside carrying it (which has happened with some other treats I've tried.) So that often gives me enough time to shoo the last few in and close the door.