Okay. i have only one world and i hate having to go in and type out the name EVERY SINGLE TIME. so, i have a solution. in the world lock settings, you can choose one world of yours as your "main world". on the world choosing screen, there is a button in the corner with a house on it. this would be the home world button, which would take you straight to your main world withour you having to type anything. I really hope the devs could see this post and implement this into the game. it would be extremely useful.