Extending : Widget extension : Enabling a customized widget in the XUI editor : Creating and registering widget mappings : Registering a widget mapping
  
Registering a widget mapping
1 In the Extensions tab of plugin file, click Add to open the New Extension window, and then select com.ibm.btt.tools.xui.editor2.generator. Click Finish.
2 Right click com.ibm.btt.tools.xui.editor2.generator, and then click New > mapping.
This graphic is described in the surrounding text.
3 In the Extension Details panel, select the mapping file that you defined in the file field.
See also
Creating and registering widget mappings