I found that there is an outliner -showNamespace command which is executed via OutlinerEditor.
So I thinking about to extend the editors mentioned above, but I donít know what would be a possible solution without too much effort.
I have been searching within heperShadePanel.mel and couple of other maya default scripts but I haven't found the part where to modify yet. I'm not sure it is possible to solve only modifying the existing mel scripts since there is no hyperGraph -showNamespace flag.
So any insights welcomed.