Only Show or Enable Events that apply to Widget in App Builder

Hi

I have been working through the various widgets to determine what events work and what do not. I have no real way to determine if an event should or should not work so I have just created bug reports for the events that do not fire. It would be helpful if the Widget Property slide out only showed or enabled the delegates that actually exists for the widget.

Thanks,
Simon

Our goal is to get all events to fire where practical without sacrificing the responsiveness of the UI?