AG_showOutgoingHiddenInputs

By default, Nuke shows you the incoming hidden inputs... in other words, you can see where the 'pipe' is coming from, but where it goes.

With this little tool you can see the outgoing hidden inputs by simply pressing the hotkey. I set it on 'alt+2' but you can change it the way you like.

The code that needs to be put in the menu.py is provided.