I'd like to start anew with a reactor, scrapping all the current waldo programming. Can it be done? (I'm on a level with no top-level map, just a reactor. Not sure if that matters.)

1 Answer 1


You can click-drag to select the whole play field and hit Delete.

Sadly there is no Ctrl-A to select all, or that would be the way to go.

  • 2
    Additionally, you can toggle visibility of one of the red or blue layer if you only want to select/delete all of one layer
    – Matt
    Commented Apr 13, 2012 at 19:48

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