They really should add the link to the official forums somewhere in game. A lot of a questions asked here can be found on the forums. And, devs dont read these commens, they do read the official forums.
Forums.wildshadow.com
@jbos123 The blocks that look like walls but which you can walk through, can only be used in saved levels. I had the same problem when I just bought it.
How come I do have the secret blocks but I can't place the one which looks like a wall but isnt. i also have the fully black blocks but it still doesnt work... can anyone explain?