I want to make a
/sethome kind of thing. I don't think you can test what a player says, but I want an item that can be thrown, then mark the X Y and Z cords. Could I do that, if so how, and will it require a command block for every block in the world?
There is a way to /sethome in vanilla Minecraft. This does not require you to throw a block, but I think it may be worth your time. Watch this video:
With this you can