If you have a custom table that has user data in it, you can pull it into a list by writing a little site specific plugin and making use of some of the hooks available in the amr-users plugin.
The hooks you’ll need are:
- amr_get_fields
- amr_get_users (to add users to the list of existing users) or
- amr_get_users_with_meta (to add data to array of existing users)
Read the filter documentation and see the add-on plugins to see how to use these hooks. Many of the add-ons use them to add data from a variety of different styles of tables.
See http://wpusersplugin.com/2940/filters/#examples
