A user with the pre-defined source admin access level can create and update other access levels in the source, permit them to be superior or inferior to other access levels, revoke superior permissions, and revoke inferior permissions. 

You cannot delete an access level once it has been created.

You cannot make one access level superior to another directly. A user with admin access level for the source of the superior level must permit it to be superior to the inferior level, and a user with admin access level for the source of the inferior level must permit it to be inferior to the superior level. When both these permissions have been granted, the superior relationship is set automatically. If one of the permissions is revoked, the superior relationship is automatically removed. This mechanism allows access level relationships to be managed by independent administrators with equal privileges.

On the Access Levels page of a source, when you are logged in and have the source admin access level:

1. Click in the section Access Levels Defined in this Source
2. Enter a name for the access level
3. Click
4. The access level will be created. 
5. Its read access level will be public and its write access level will be set to the source admin level. (You can change them later.)
6. Your access level will be superior to it. (You can revoke the permissions for this later.)

On the Access Levels page of a source, when you are logged in and have the source admin access level:

1. Click for the access level in the section Access Levels Defined in this Source
2. You can change the name of the access level
3. You can choose its read access level
4. You can choose its write access level
5. Click

On the Access Levels page of a source, when you are logged in and have the source admin access level:

1. Click in the section Superior Permissions
2. Choose the access level that you permit to be the superior
3. Choose the access level that you permit to be the inferior
4. Click
   
5. If the other level is already permitted to be inferior to the superior level, the superior relationship will be set automatically.

On the Access Levels page of a source, when you are logged in and have the source admin access level:

1. Click
2. Choose the access level that you permit to be the superior
3. Choose the access level that you permit to be the inferior
4. Click
5. If the other level is already permitted to be superior to the inferior level, the superior relationship will be set automatically.

On the Access Levels page of a source, when you are logged in and have the source admin access level:

1. Click for the permission in the section Superior Permissions
2. A confirm dialog will appear. Click OK
3. If the other level is permitted to be inferior, so that the level was superior to it, the superior relationship will be removed automatically.

On the Access Levels page of a source, when you are logged in and have the source admin access level:

1. Click for the permission in the section Inferior Permissions
2. A confirm dialog will appear. Click OK
3. If the other level is permitted to be superior, so that the level was inferior to it, the superior relationship will be removed automatically.