@Xiste:
I absolutely agree with you!
To make something un-viewable is just a complicated way of saying hide.
Hide and show are much better terms, as they are precisely to the point and immediately leads you in the right direction.
I really don't see Puybaret's point here, and how this can create any confusion. We're dealing with the visibility of levels. What can that possibly be confused with?

That said, I think custom shortcuts would be a great idea as the program continues to expand and get more and more options.
Photoshop has several hundreds commands we can define our own personal shortcuts for.

The automatic pop-up is also a great idea!


Cec