How to make unweighted character bones show up in scene?

Unity seems to ignore and not render the bones that have no attached sprite. Is there any way to make them show up?

It's not uncommon at all in animation to create bones that are merely parent bones for a greater structure. I could - for example - create a hip bone to control both legs, but the hip bone wouldn't have any weight on the actual sprites - it would simply be used to offset legs when needed.

Here's an example of a bone that doesn't show up in the Scene view, but it desperately needed.



Here's the same rig in Scene view:

 

Thanks, I will!