I think the intention is that that feature will migrate to InDesign CC, but it's just not here yet.
The good thing about CC is that updates won't require us to wait another year!
I have to say that the whole CC serice seems to be a little 'hit and miss' at the moment. I have just found out that Folder Sharing is also not available. I purchased a 3 seat option of the CC for Teams and without InDesign CC Setting Syncing and a shared folder setup the service is much less appealing.
Such is life, I guess...