Removing props from Newcrest.

Hi. Not sure if this is the right thread to post my question. I recently downloaded an empty Oasis world, with all the props removed and love it! Trying to figure out how they did it but those file numbers used to open game files using S4pe are a nightmare!

Anyway, long story short. I'm doing a post apocalyptic challenge atm and would like to know if it's possible to remove the background houses from Newcrest and if so maybe a pointer on how to do it?

Thanks guys. Have a great day!! ☺