How do I add playsets of all cards in checklist view?

When I would enter the cards I got for a new expansion, I used to always use the little dropdown that allowed you to add 1 or 4 to all cards in an edition. I can't find that dropdown anymore. It was a real time-saver, because otherwise I'm having to modify each card individually, which is ridiculous when I have playsets of all of them. Where did this capability go?