Extending the "Start Debugging" menu in custom project type

I created a new project type based on mpf framework for Visual Studio 2012. In the new project type, I was able to customize the "Start Debugging" action to meet new project type needs by implementing IVsDebuggableProjectCfg.

Now I have one action in "Start Debugging" menu, which is "Start".

I need to extend the the "Start Debugging" menu to include different flavors of "Start Debugging" actions; something similar to C++ projects:

Should I create a new menu and hide the existing one, or there is a way to extend the existing start menu?

Any suggestions?

Thanks