Outlook Calendar Feed - Ability to Filter Selection

It would be helpful to be able to filter the employees in the outlook calendar feed from the planner section to only the individuals/locations/departments that you have specified at the top.

Currently the feed takes all staff details across to outlook (for admin) and all staff determined by the manager settings (e.g. all team events) for other staff. We have instances where people need to view holidays of staff that are not in their "team"