So I'm on the parkour server and i'm just about to do a really difficult jump, i want to turn players on to see how to do it, but i accidentally click the emerald that makes me leave the lobby. I had to do the parkour all over again and i clicked the emerald AGAIN. I was really annoyed and was wondering whether the emerald to leave the lobby could be in square 9 of your hotbar so that doesn't happen again. Thank You!