Access profiles over network

Hi

I have setup two profiles on my main Kodi machine (Zappiti 4k running android 6) , one for my 14 year old daughter and one for my 18 year old son as I don’t want my 14 year old watching 18 year old programmes.

The kids access the main machine via their tabs using UPNP on my home network

I want the tabs to automatically logon to the profiles, I have setup on the main machine… How do you do this ? I can’t seem to access/see the profiles remotely.

I’ve searched the forum with the keyword profiles, but I can’t find the answer

Thanks if anyone can point me in the right direction