View Archived Staff Appointments without having to reactivate

It would be great to be able to see appointments of all archived staff from before when they were archived, without having to physically go in and reactivate them all, so that we can ensure there are no gaps in client schedules for billing purposes. When looking at weeks past, if a staff member has been archived it just appears that there are gaps in the schedule that were not filled in for the time that the clients were receiving services - it is misleading. Even if it were just a box that could be checked to "Turn on schedules of Archived Staff"