Where do you mark on Form 540 that the return you are filing is amended? The instruction says "check the box on top of Form 540 indicating amended return" but I don't see that box on the Info Wks. I completed Schedule X but I am not sure if it is enough. I saw the "Special Condition Text" that I could use to type in Amended on top of the form but is it the proper way to do it?  I realize that 540X is no longer used.