I have a list of 20 items in a single answer question, is there a way I can easily show these in alphabetical order (without moving up/down etc.)?

As an alternative to moving them up and down, you can put them in alphabetical order using Advanced Randomization (just change the fixed display order on the left, don't randomize).

Thanks TomG, I had thought of that - I was just being incredibly lazy. I thought an A-Z button would be really helpful!