Limit to number of items shown/hidden

Is there a limit to the number of items that can be shown/hidden at one time? For example, I have a list of labeled buttons that I want to explain all on one slide. There are 13 buttons in the list. For each button I want to show images of what happens when it's clicked, an arrow to results afterward, and a text explanation - 13 times. Is this too much for one page to handle?

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