[peterska2]

You should add the template hooks as they are needed for the upcoming official products and may be needed for some modifications.

To hide the private fields, you will need to wrap them in a conditional to stop users who are not in the usergroups that have permission to view them from seeing them. This will be in the form of <if condition="is_member_of($userinfo, x,y,z)"> where x,y,z are the usergroup id numbers of the groups you wish to be able to see the private fields. Apart from this conditional, the rest of the adding them is as normal.