I think I found it. But not sure of the right syntax. I believe I need to be under /md
http://www.arubanetworks.com/techdocs/ArubaOS_81_Web_Help/Content/ArubaFrameStyles/Configuration_Hierarchy/Config_Hierarchy.htm
Allowed Node Operations
The following node operations are allowed on Mobility Master:
Create Node: Creates a new node as the child of an existing node in the configuration hierarchy (system-generated or user-created)
Add Device: Associates a device to an existing node in the hierarchy. This device inherits configurations from all nodes between the root node and the device (node-path).
Delete Node: Deletes an existing user-created node or node without any child nodes. System-generated nodes cannot be deleted. Only leaf nodes without any child nodes can be deleted.
Delete Device: Deletes a currently associated device from the configuration hierarchy. This will cause the device to reload and erase all configurations received from Mobility Master.
Clone Node: Copies the configuration of an existing node into a new node. The new node is created as a child of an existing node in the hierarchy.