If you're thinking propagating them to sell to a
LFS... not sure it'd be worth your time. Those types of polyps seem to be a dime a dozen around my parts. I think they can get them pretty cheap from wholesalers.
But to answer your question, you can frag them like any other zoanthid/palythoa... cut with an exacto and glue onto another rock with superglue. Be sure to wear rubber gloves and shield your eyes/face when cutting any zoanthids/palythoas. Their mucous contains a fairly potent neurotoxin which can mess you up... to say the least. Google "palytoxin" before fragging.