Grant an employee the power to manage the timesheets of others

By default all Super users can submit a timesheet for someone else. This power is also available to Full users, but only if their employee settings page in the back office has been configured to allow it:

submit timesheet others
You must have the Support staff role in order to access the back office.

Select the Can manage timesheets for other users checkbox to give the employee the ability to manage the timesheets of others.