If the option 'event_open_popup' is set to true, then the calendar view will open events (or records) in a FormViewDialog. Otherwise, it will open events in a new form view (with a do_action)
If the option 'event_open_popup' is set to true, then the calendar view will open events (or records) in a FormViewDialog. Otherwise, it will open events in a new form view (with a do_action)