How to minimize or maximize dashboard charts with one click

Tableau doesn't have specifically what you want, but you can simulate it.

We have a feature called navigation buttons.  In the attached Superstore example I put three sheets on Dashboard 1.  I added a navigation button for each sheet, and I set up the functionality for the first sheet.  (The other buttons right now don't do anything.)

If the user clicks on the "Expand Trend" button, it is set up to navigate to "Trend Dashboard" which contains the identical sheet, but expanded to fill the dashboard.  (Special note:  In DESKTOP you don't just click on the button, but you do ALT-CLICK.  That's because when you are in Desktop you are usually editing things, and that often involves clicking and dragging objects around.  If nothing but a click would activate the button, you'd never be able to click on it and drag it or resize it, because the click would automatically jump you to the target dashboard.  But when published for users, a simple click activates the button.)

So ALT-click that button.  You go to the Trend dashboard.  There is a return button on the Trend dashboard that I labeled "Shrink", but really what it is doing is navigating you back to Dashboard 1.

You can set up the same for the other two.  I could go into all sorts of detail about how to set up these buttons, but there is far better tutorial from Tableau out there.  Just google for it.

Note:  Buttons arrived in Tableau in V2018.3.  And being able to insert your own text in the button (as I did) instead of an image started in 2019.2 (which is the version of the workbook I have uploaded here.)