Yea, that's a very nice one. They are using a combination of dashboard actions (filtering when you click on an image) and hidden layout containers. (See when the "Yes/No" bar changes to age ranges?)
Sadly, they appear to block the download of the workbook, so we can't reverse engineer it.
However, here is a very simple walk-through of building a dash with hidden layout containers. (Doc and TWBX attached).
If you find this helpful, or answers your question, please mark it as such so that others can find it quickly.
Tableau Online Deployment Advisor