Oxygen XML Editor allows you to select a DITA Map as a key space, or root map, for all the other DITA Maps and topics in the project. Specifying the correct root map helps to prevent validation problems when you work with keyrefs and also acts as the foundation for content completion. All the keys that are defined in a root map are available in the maps that the root map contains.
Insert Content Key
Reference button to open the Insert Content Key
Reference dialog and click on the Change Root Map
link at the top of the dialog.To watch our video demonstration about the DITA Root Map support, go to http://oxygenxml.com/demo/DITA_Root_Map.html.