Admin > Config > Custom Staff Fields
Custom Staff Fields allows you to add additional fields to the staff profile where you can record information.
You will have the option to Add New or Edit an existing data collection field. You can enter a field type and a field name then click Update. To remove an entry select Edit and Delete.
Once entered, these fields will appear on the main page of the staff profile.
You can report on these Custom Fields via the Staff Custom Report (Reporting > Reports > Staff tab > Custom Report). Tick the box that says Custom Fields prior to running the report.