I use a foreign key, that results in a user-database. The user-database have the columns firstname and surname. phpMyAdmin can currently only handle "single fields". With this patch, user is able to create a User-Defined-Function or use a integrated function supported by MySQL eg. CONCAT(surname,' ',firstname). The ToolTip of a foreignkey will now show the full qualified name. Also the dropdowns and the relation-table-viewer lists the full qualified name.
I hope this feature will get released for public use.
INSERT INTO `pma_table_info` (`db_name`, `table_name`, `display_field`) VALUES
('CRM_MINI', 'CRM_POSTITS', 'CONCAT(REFERENCE_TYPE, '' - ID '', REFERENCE_ID)');