First of all find out which application truck93 is member of.
1. Login to SiteAdmin
2. Search for truck93
3. Login to the application
TIPS! There is a useful feature in SiteAdmin to login "impersonated". In the application list in SiteAdmin click on the icon left to the name of the application, then select the username to login as. In this way you can verify that a user gets the proper experience when logged in.
4. Search for truck93 in the search box above the Vehicle List.
5. Right click on truck93 and select Edit User.
Make the changes you need, and add the relevant Tags to make it visible in relevant Views.