How do I dynamically control animations in PowerPoint 2010?

Question

I'm playing around with PowerPoint creating a trivia game. When the user clicks on a tile on the main slide it advances to another slide with the question. When the user clicks the return button, they should return to the main slide (simple enough), but the tile that they had previously clicked on should disappear so that they cannot click on it again. It's a simple matter to make the tile disappear, but when returning to the title slide, all tiles reappear. I cannot figure out how to save the state of the animation so that they are not on the screen any more. I'm guessing this will need to be done with VBA, but my VBA knowledge is a bit limited. Any advice would be greatly appreciated.

Answer 1

An ugly, brute force solution that may lead to a maintenance nightmare is to have an obscene number of copies of the page.  (And I guess that probably means an obscene number of copies of each page.)  For example

X a     X a     X a     X a     X a     X a     X a     X a
X b     X b     X b     X b     X       X       X       X
X c     X c     X       X       X c     X c     X       X
X d     X       X d     X       X d     X       X d     X

would be the first 8 of the 16 (2⁴) copies that you would need if you have four tiles.

Using VBA would probably be a more scalable approach.