From Shoot Em Up Kit
The Level Menu lists all the levels in the game.
The order in which the levels appear in the list is the order they are used in-game.
To modify the order use the up and down arrows to move the position of the level in the list.
To copy a level use the copy button.
To delete a level use the delete button.
To get to the Level Menu in the Level Editor click the button at the bottom of the Tools Menu . This will close the current level and display the Level Menu.