Is it possible to move trees independently?

Hello,I want merge map with another map, I was able to move everything except the trees. Manually making trees is not an option, as the author of the map made everything as beautiful as possible, but in my hands it will be terrible). Is there a way to see trees not as a "forest", but as ordinary objects, so that you can move them or select all the trees and move them. Or how to move the already prepared "forest"? Is it also possible to move an already completed "forest" to another map? As I understand it, everything is stored in a JSON file and when I try to upload it to the map, my game crashes.