Agree with Tut, I’m not sure how this works … as a paying customer myself (now that I use Server Edition) … I appreciate that we have multi-user capabilities already.
If you need assistance with this, I’d encourage you to check this guide under “Create a restricted user”.
I can’t comment specifically on this … but by browsing the forums often, I’ve noticed hints here and there that a few bigger features are coming / in the works.
As a software developer myself (not for Manager), I can assure you that sometimes these things take time (i.e. months) to completely polish & test thoroughly.