Do you want candidates to see all previous shift job reports for a client submitted by other candidates? There’s a setting for that!
To show the previous shift job reports for a candidate go to the “My Jobs” tab then on the table header click the gear icon to edit the settings:
Enable the setting “Candidate can see all previous shift job reports for their client, including those submitted by other candidates”: 
Candidates will then start to see a button “View All Reports for Client” which will show the previous reports submitted for that client:
If you’re not sure about shift job reports, learn more here.
