How can I generate a world where each player is given a flat slab of land (maybe 10 deep - 100x100) separated by air (maybe 15-20 nodes of air?) that players can use 'creative' to build homes to later be pasted via Worldedit into a server map? I don't want to use this for anything more than a massive creative server that my students can create homes in to learn HOW to build that can then be incorporated in the very detailed town map. I know there is a sky game, but that is a much different game concept I think.

Any help will be apprecited.

I didn't find the right solution from the Internet.

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Thank you.