To Move a Child Feature Type
Moving a child feature type from one compound feature type to another feature type will remove the feature type from its current parent and add it to the new feature type. The destination feature type will become a parent feature type (if it is not already one). The original parent feature type will become an independent feature type and displayed at the top level of the tree if this action leaves it with no remaining child feature types. The Move command for this task is accessed from a shortcut menu during the drag-and-drop operation.