Allow Supervisor Company and User to be Added/Updated via the Contract Overview

Currently the Employer, PM, Contractor (Company and User) can be selected via the Contract Overview. However, it’s not currently possible to select the Supervisor (Company and User) in this way. Supervisor can only be added/updated by raising a support ticket. It would be extremely useful if this could be updated via the UI or, in the meantime, if the Supervisor field could be hidden from the dashboard.