Add toggle in employee to allow employee to view all schedules on the scheduler app

I would like a toggle that would allow employees to view the entire schedule of all employees in the scheduler app.  This is needed so that when they are messaging or putting in requests they know who is available to cover a shift.  I have given them all permission to do this as a manager but as soon as I sync to schedule the access privilege reverts to employee and they are unable to the the scheduler on the app.