To add an external calendar:
the engine validates the url and fills in the "label" field if it has correctly accessed the calendar and its name is included:
NB: the "label" field can still be edited, allowing you to customize the calendar's name:
Click "Add" to create the calendar, which is added to your list of personal calendars:
The external calendar has two specific links:
The "Freebusy" column allows you to choose which calendar(s) will be used to show your status when other users query your availability to invite you to an event.
The calendar is added automatically to your calendar's default view:
The only change you can make to an external calendar is its name:
Calendar urls cannot be changed, to load a new url you must delete the calendar and then create a new one.
An external calendar can be removed from default view like other calendars, by clicking its color icon and then "Remove":
To delete a calendar from your settings:
The calendar is deleted immediately and removed from view.
If this fails, reset local data and/or remove the calendar from view (see previous paragraph).