This is a tool for building structures for Minecraft.
Yes, you can use a structure block, but those are hard to use with commands.
Whereas, these structures can be downloaded as a .mcfunction file and put into a datapack.
I don't support all of Minecraft's blocks yet. Meanwhile, you can create a pull request to add more blocks. I'll try to add all the pull requests that add blocks.
Yes, just press CTRL+S (CMD+S Mac).
