Creo8 Symbols Rename (Definition Name)

On the drawing the UI the new symbol tab that appears by clicking on an existing symbol shows Definition Name under the Customization group, and allows you to place a curser in that dialog, however, It doesn't allow me to edit the symbol name.  Do we still not have the ability to rename a symbol within Creo?  

From the preview/user group for Symbols, it looked like we were going to get some extra symbol definition or even the Edit capabilities within Creo, however, I haven't seen any yet.  Please let me know if you find any.