Re: tiki 14.2 can not find userlist plugin
And in case it helps, the "Admin Wizard" has most (if not all) those settings grouped together:
https://doc.tiki.org/Admin+Wizard#Set_up_User_REAL_AMP_Community_features
Community settings > Show users' real name instead of login (when possible).
This will open up a hidden section with more preferences associated to Real Names.