I would like to open another user's calendar assuming that I have the appropriate permissions.
I am using davmail as a gateway to office 365 calendars and Agendav as a frontend.
Is it possible to change the principal url so that all users have access to this specific calendar?
I can already do this with Lightning for example.

If I change the $app['caldav.baseurl'] to: http://localhost:1080/users/USER1@DOMAIN/Calendar
I get Internal server error, but after a page refresh I am able to see the USER1 calendar, so it partially works, apart from the Internal server error which I have to ignore every time.