You can use the 'actions' and go to 'curl' if you want to 'snuggle' someone, as for others; FeralHeart is still growing, those actions might be added eventually, though theres a good chance it'd be more 'realistic' than the 'hug, kiss, roll around together', I don't think lions or wolves kiss or hug each other .w.
As for The group icon, I think that might take alot of coding. Though, maybe it could show only where the leader is?