How to write an AppleScript for Keynote that deletes a text box after clicking it?

Is it possible to write an AppleScript for Keynote that will delete a text box after clicking it, changing the look of the box or anything else? I am trying to make a Jeopardy game and want the ability to show what items are still available on the main screen. It seems like this can be done, but I have no programming ability no matter how hard I try to understand it.

Thanks for any help you can give me