The Duplicate Tabs button is probably an under-used option for most people. However, it can really come in handy. Every now and then, I need to keep a specific email open, but get back to my inbox. Duplicate Tab. Sometimes, I need to have a course in Schoology open, but open another. Duplicate Tab. One of my favorite uses, though, is when I have more than one Google Form submission that I have to fill out and they all have some similar entries (i.e., multiple session proposals for a conference, discipline referrals for the same incident with different students). Dup-li-cate Tab! Check out how that looks in the GIF below: