I recently corrupted many chunks around my base as I accidently uninstalled a world gen mod. I've just flown around in repair mode and regenerated those chunks and all is fixed however it would be great if I could 'de-generate' those chunks and turn back to dark in my map all chunks in a certain radius around my base both to save disk space and as I feel I've cheated! (Wish i could have done this to begin with)
The only other chunks I'd need are those which the trader is in who gave me details of the Archives as I wouldn't want to reset him and lose access to the Chapter two.
Any help would be appreciated, apologies if I've not used the correct terms for anything!
Thanks!
Edit- Title change