There's not much to this, which is just Circassian Circle in waltz time:

Big Circle (if calling gendered, in each initial couple, lady on the left, gent on the right as you face in.  [I know that's the opposite of what
we're used to but it makes the progression easy-peasy.)

A1: Everybody into the center (six steps) and back, twice.

A2: Just ladies/women/1s into the center and back.
     Just gents/2s into the center and back and face partner

B1: ("Swing" in the original): Balance and two-hand-turn halfway; repeat to own side.

B2:  With the 2s on the inside, all promenade the circle (or open waltz,or whatever), not passing anybody;
       on the last two bars fold in naturally with the 1 on the left, 2 on the right.  [If you think they can do closed waltz, let them do six
measures of closed waltz around the ring.]

(Next round starts with hands in a big ring, and your new partner is the one in your hand who isn't your old partner..)

Haven't tried this but looks to me like it'll work well if you're not too crowded.  Six steps in is a long way in.