JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. To Delete a Level From the Level Manager dialog, select the level to be deleted in the level list. Only levels in the open DGN file can be deleted. Do one of the following: Press the <Delete> key. orFrom the Edit menu, choose Delete. orRight-click and choose Delete from the pop-up menu. Note: Only unused levels can be deleted. Parent topic: Creating and Deleting Levels