Currently sending the command /v d /e <action> does nothing. I could have sworn they used to be able to do this. It'd be cool if you could!
Mirror images are annoying enough as is.
The more annoying clones are the better IMO. That's pretty much their only purpose in life.
The reason they can't emote probably has something to do with Tala's endless efforts to keep them from bugging out factions though, so if they are currently working may just have to be happy as is.