If you have a Drupal site with users and you want to allow them to add some profile data about themselves there are a few routes available to you, one of the oldest (and thus simplest) ways is to use profile module. You can add text fields, selects and other bits and bobs to users, with different visibility settings for each field. You also have the chance (in fact it is required that you do) to categorise your fields. These categories then show up as secondary tabs on the user edit page. But what happens when you want to make...
