Getting the messages/handlers available for a button

[Len Morgan]

This should be so simple but I can't get the instructions in the 
documentation to work:

What I'd like to know is what handlers are available to a button.  This 
would include not only scripts I've written for the button but also the 
ones that Rev has builtin (like mouseUp).  It would be really cool if I 
could get any handlers along the way like in groups, cards, stacks that 
this button (or whatever control for that matter) is contained in/on.

len morgan