Vertical "stacked" pushbuttons

[GeneB]

I recently saw, somewhere in Express, a demo of vertically stacked pushbuttons, that when clicked on, can expand vertically and more push buttons are inserted beneath the clicked button.

I have spent too much time trying to find these again.
Are they in the samples or xdemo, or did I dream it?
Thanks,
GeneB

[rdonnay]

Look in \exp19\samples\pbstack.

[GeneB]

Of course, that makes sense.
Thanks for the help, but I'm kind of disappointed that I didn't dream it.
I was thinking maybe I had a gift.
GeneB