Feature request: Be able to duplicate a masyu board with question marks on it.

[LukePebody]

I designed this puzzle:

Where you have to solve two masyu's with the same layout, and all you are told is that whichever cells are white in one are black in the other and vice versa. Would be easy to share a version for people to solve here if I could duplicate a board with question marks on it. Sadly I get: "Fail to import puzzle data or URL."

Thanks!