You must be given the right to create them by the system administrator, and they are owned by the creator. Members only groups can be used by anyone in the group. Anyone can create them, and they are owned by the creator. Private groups can only be used by the creator. Anyone can create them, and they are owned by the creator.
Groups are most useful in the Netscape calendar client.
The web client can see groups created in another client, but does not have the capability to create a group. You should have a large box that will contain the list of groups that you own. It should be empty if you have never created a group. To create a new group, press the New button. In this dialog box, fill in the name of the group and the group type.