In the Space Permissions form, you can add permissions for individual users, groups of users or memberships.
1. Click 
to assign permissions to a user, a group or a membership respectively.
The form to select the user, the group and the membership appears.
2. Select a user, a group or a membership, then click Add.
3. Click 
to add the selectors to the Owner column in the Space Permissions form.
4. Tick the checkboxes corresponding to each permission you want to assign to the selectors.
5. Click Save to commit.
Note
View, Edit, Admin Pages permissions are applied by default to any pages of the space unless specific page permissions are set. The super user has all permissions implicitly.