Your changes are saved in the levels folder which is in the BeamNG userfolder. Your friend can put these changes at the same place on his computer. Or you rename the map and copy your changes over and deploy it to the beammp server. I wrote a bit about it here in the comments. my tool can be found here: https://www.beamng.com/threads/beamng-tool-for-map-creators-updated-2025-01-17.89058/
