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There seems to be a problem with the software?: When one tries to make a round box- the diameter just pushes the two items further away from each other not increasing the diameter of the box and lid? I tried to make more sided boxes too- so far no problems, every one from two sides upwards works ok, but the one sided/round box doesn't? So how does one make a round box like on your pictures?

Oh by the way fantastic customizer! I'm always looking for things like this on here!