The introduction of button width control has allowed the creation of designs such as this:

This is one Buttons block with 5 buttons inside, each button set to 100% width. The vertical spacing between the buttons is quite small. It would be great to have a way to control the vertical spacing in case of stacked buttons. I'm keen to hear others opinion on this. I know the theme being used will affect this as well, but I think having control over spacing between buttons would be useful anyway.