Add a custom field to a quiz I've got a quiz. There is a content type to create a question. I've added a textfield to it (which will show a link to where the user can find the answer).

When I look at the question itself the textfield has been added and is being displayed on the screen. But when the question is part of the quiz, the textfield isn't there anymore (not on the screen, nor in the code).

Who can help me?

Maybe I need to add some kind of hook to the Quiz module but I don't know how hooks/custom modules work.

Thanks in advance.
There are probably many ways doing this. I'm still new as well, so go easy on me.

I would suggest you to create a taxonomy quiz. Each list item of quiz would be your question. Then for the content type answer, have a field named question and select term reference, choose select list as the widget type. That way, when a user create a new content answer and refer to one of the question from taxonomy quiz, you can just click on the question and it will give you a list of answer.

Other ways would be using Node Reference, but I couldn't get my mind around how to refer back to the question itself, maybe Relation would do the trick.

But try my first suggestion first.