As a user, I would like to add the same event to multiple calendars

I would like to be able to create and manage the same event across multiple calendars. For example, I am part of a scrum team and a department. When I am out of the office, I would like to log and maintain that single event across both calendars since both have their own purposes for resource management.

As a department manager, I don't want to have to add all scrum teams to see when my team resources are available.