I have created a quiz in which participants start with 100 points. The points are displayed in a text box using the 'Score' reference. As they attempt each question they have the option to click a 'Show Hint' button, to help them if they are struggling. Clicking the button reveals the hint and also deducts 5 points from the score via a "Subtract value 5 from score when the user clicks Show Hint button" trigger.
Is there a way to prevent repeated clicks of the 'Show Hint' button deducting a further 5 points?