Co-owner: Allows someone to act as a co-owner and to manage some sharing settings. A co-owner can't delete a calendar or change the publishing web address for a shared calendar.
Solastnik: omogoča nekomu, da je solastnik in da lahko upravlja nastavitve skupne rabe. Solastnik ne more izbrisati koledarja ali spremeniti objavljenega spletnega naslova za koledar v skupni rabi.