22 Mar 2018 ... 1 Answer 1 · stand next to the last slab (leave one space for air if you didn't copy one after the last slab) · Use the clone command: /clone x1 ...
How can I fill in every second block? - Arqade - Stack Exchange
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![Easiest way to use /fill and /clone commands [TUTORIAL] : r/Minecraft](https://external-preview.redd.it/easiest-way-to-use-fill-and-clone-commands-tutorial-v0-f1eDG8YD2ij26q2JgmYU0K5Pgc39w4mA4DtSFK8kkfM.png?width=1080&crop=smart&format=pjpg&auto=webp&s=5e30441f323e9834d000b8633b435df2d35e579d)
