How do I hide specific custom questions and answers?
Your first step to hiding custom questions is to select "Hide Custom Questions & Answers" in the advanced features tap. Once you check that box, it will populate on the left side bar.
Now, select that option on the left side, and read the top header. The top "hide questions" section allows you to hide a certain custom question from a specific sub event by unchecking the correct boxes. For example, if you only wanted to offer the T-Shirt to your 5K and not the kids run, you could hide that question from the kids run registrants.
Scrolling down to the "hide answer" section you'll see that you can hide specific answers to a question. For example, if you are out of small T-Shirts and would like to hide that option, just change it from visible to hidden.