I'm sorry. I'll be careful from now on.
I tried create .patch file, but I can't setup forge basefiles with MCP for some reason.
Modification point is divided into three major categories:
1, Map can be stacked 64 sheets.
2, The middle of new map is adjusted to the nearest 1024 x,z co-ordinate.
3, Override the method 'onItemUse()'.
Thanks