Suggestion: Generate selected chunks

[ImmensityHQ]

Generates (or regenerates, if you have already populated chunks selected) selected chunks based on the world's seed.

[Matej-Hajek]

I think this project is what you need: https://github.com/Morlok8k/MinecraftLandGenerator . It is a little old, but you can figure it out. You need to generate a new world(with correct seed!) and using mcaselector copy the chunks into your world

Or just create a new world with the correct seed, generate chunks you need and copy them where you need

PS: it would be very cool and useful if mcaselector could generate chunks

[HoldYourWaffle]

You might be interested in Chunky Pregenerator.