If you are a user with the appropriate authority (Admin, Parent Calendar Admin, Editor) then you can give permission(s) to users on a per calendar basis by doing the following:
- Head to the Team Members section
- Hover over their name and a View/Edit User link will become visible.
- Click the View/Edit User link
- Select the appropriate role for each calendar
- Click the green Apply Changes bottom at the bottom of the overlay
For more information about calendar access and permissions read our deep-dive article.