Limit Access to the PTO Calendar Based on Subgroups

Limit Access to the PTO Calendar Based on Subgroups

My company has different PTO subgroups for different locations as they are run slightly different and do not always have the dame holidays. However when employees look at the PTO calendar and they select view all, they are able to see the PTO calendar for all subgroups. This is a problem for us as the days the office is closed will sometimes be different depending on the subgroup. 

It would be great if we could limit the access to the calendar so that employees can only see information for their specific subgroup.