Deleting Nodes
Nodes can be deleted from the tree. There are two options for deleting: Delete and Delete Branch.
Selecting Delete deletes the selected node. Delete is available for any leaf node (a node without any children). It is also available for a non-leaf node that represents all the attributes for an attribute value: the children under this node move under the parent.
Selecting Delete Branch deletes the entire branch of nodes under the selected node, but not the selected node itself.