You can prevent entry of events that have time conflicts with existing events; or allow them, but display a warning.
You can also specify a minimum separation time between events. For instance, if the separation is specified as 20 minutes, two events would be considered to conflict if one started 15 minutes after the other ended. (This setting will be ignored if Conflicting Events are Allowed.)
Finally, if the option is set, events will be considered conflicting only if they have at least one category in common.
You can prevent users from adding new events that are scheduled for the near future; or just display a warning.
Be sure to specify the number of hours in advance; e.g. if set to "24 hours", users won't be able to add events which occur within 1 day of the time the event is submitted.
(The number of hours setting is ignored if Last Minute Events are Allowed.)
You can choose to prevent users from changing (or deleting) events that are scheduled for the near future. Or, you can choose to have a warning message displayed before the modification is accepted.
Be sure to specify the number of hours in advance; e.g. if set to "24 hours", users won't be able to change events which occur within 1 day of the time the modification is submitted.
(The number of hours setting is ignored if Last Minute Editing is Allowed.)
You can use this setting to prevent users from adding or editing events that occur in the current day, month, week, or year.
For example - if set to "Month" and today is July 9th, then events that occur on any day in July (this year) cannot be added or changed.
Use this to allow people to make future changes, but only until the end of the current period. E.g. allow making changes for October, but only until September 30th.
Note that changes could still be made to past months, unless "Past Event Protection" is also selected.
If checked, users with "Add" permission can submit new events, but they will not be displayed on the calendar until somebody with "Edit" rights approves them.
A privileged user can click the ✓ link to see a list of all events pending approval, and approve or delete them.
These settings specify whether or not the `Add to Which Calendars` control should appear on the Event Edit Form.
You can specify which users will see it:
You also specify which of the calendars that the user has Add permission in should appear in the list: