lets start with the blueprints
the idea is that you have a tool to highlight a 3d space and be able to copy and paste it without having to design it over again and should for houses/buldings and vehicles. if your on survival you need to still collects the materials and place it by hand it just acts as a guidline but in creative it should automatically build itself replacing whatever was on the way with the new blocks
map editor basically world painter like minecraft had
thats all thank you