So, after finally opening MCreator, I tried to import a custom structure that I made. But there are some problems:
1: How can the structure's interior be completely out of air (because in my case, they were full of dirt, stone etc)?
2: MCedit does export sctuctures, but it doesn't work with custom blocks. (the custom blocks are simply replaced by air).
I checked some pages and there are no answers. Is there any other way to do this job?
Thanks in advance. Any help appreciated as always!