You will need to add your different occupations that are relevant to your company for example Admin, Nurse, Doctor, Dentist, Waitress, and so on. 

Press the blue 'Add' button, tick 'Active', then enter the occupations the employees will have to select from in their Onboarding online forms and click save to complete.

When you leave 'Active' unticked it will then archive this occupation - which you can then click on the occupation and tick 'Active' in the archived occupations to make that occupation active again.