Add the next level to your game.
To add the next level to your game, click the little right-pointing arrow next to the current level at the top right of the game board.
Use this arrow to add up to 5 levels. Use its left-pointing partner to switch back edit a previous level.
Use the open book info icon to change the information, timing and sound details for this level.
You can make changes to all the collectables and baddies when you start a new level. How?
apply to all button
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Here is the process in a screen video: