Default No "User" menu on Android 4.2.2 tablet

Looking for support.. Bought a new Android 4.2.2 table for it's Multi-user capability. Unfortunately the User menu is missing from the settings menu. The tablet is an Eken GC10x. I believe ROM may be Wing-K70?? It's been rooted, but still no User menu option.. Not sure what's wrong. Anyone have a recommendation?