Hidden user questions.

Ok, sorry, these may be a very easy questions.

1. How do i become a hidden user? (I want this for this forum because i saw https://help.forumotion.com/viewonline map was activated and i personally dont like people knowing where i live and my other names)
   
2. How do i automatically make a groups members all be hidden users automatically. (i need this for my forum)
   

You cannot make users hidden status automatically. It has to be done by the user themself through :
Navbar > Profile > Preferences > Hide my online status

Tick 'yes' and save.

Group: You can only hide the group itself, not the members. If the group is hidden, members will not really know that they are in it unless this group has special permissions.

Ok, solved.