Adding a question to a test now opens a fuller Add question picker. It lists every question type with a short description and a preview, so it's easier to find the right one — and to try a type you haven't used before.
Found the ones you reach for every time? Pin them, and they sit at the front of the question adder from then on, so your favourites are a single click away. Everything else is still there under More question types.
Your pinned types follow your account, so they're the same whichever test you're working on.