To claim a plot on Creative, you first need to find a plot with smooth stone slabs, not sandstone. Sandstone means the plot is already claimed.
When you have found a plot with smooth stone, use the command /plot claim
The plot will then be claimed.

If you want to build in the NC Creative Normal world, you first need to get into that world. How to do that is in this guide: Martin hasn't got that far yet – @ him on Discord and ask him to fix it!
Once you have got into the world, you need to claim the area you are going to build in. You do this by following this guide:
How to claim on NorwayCraft Classic
It's the same features and permissions as on Classic, only now you can fly while you claim! 😀

