Dynamic Buttons -- Can Buttons Appear/Hide?

I'm navigating the buttons step and I can't find information on this issue nor am I even sure it's possible. I'm trying to extract options from a csv list and convert them to buttons depending on the contents of the list, but is there a way to toggle the visibility of the buttons? Sometimes a csv list will have five options, sometimes seven, etc. Since I don't want empty buttons taking up space, is there a way to show/hide buttons as needed?