"implementors of" for MenuItemMorphs and PluggableButtonMorphs

Fellow Squeakers,

I just added a feature to the inbox which I always wanted to have: I  
often want to know how a certain menu item or button command is  
implemented. Therefore I added "implementors of" to the debug menu of  
MenuItemMorphs and PluggableButtonMorphs. The debug menu can be  
accessed through the halos.

I am grateful for feedback, especially about the names of the methods  
or the menu item. Or is there already a way to achieve this  
functionality?

What might be even cooler: If I click a menu item or a button with  
some modifiers pressed a debugger opens so that I can step through the  
code. How could this be done?

Thanks for your support.

Cheers,
Bernhard