Note
All group calendars will be put in the Group Calendars pane.
1. Follow steps as stated in the Create a personal calendar section to give details for your new calendar.
2. Select the Groups tab.
3. Tick checkboxes corresponding to groups that contain your created calendar. The users of the selected groups can only view this calendar.
i. Click 
to open the User Selector form. This form will help you select a specific user you want to share.
ii Click the user you want to share the Edit permission.
Grant the Edit permission to membership types of your selected group.
i. Click 
to open the User Selector form.
ii. Select a membership type of each group. Select * if you want to assign the Edit permission to all memberships of each group.
Note
You can select more users/memberships by repeating the above steps. The selected users/memberships will be updated in corresponding textboxes.
You can delete your selected users/memberships manually in each textbox.
4. Click Save to finish creating your new group calendar.
Your newly added calendar will appear in the shared groups.