Bedrock Holobuild

Save any build as a blueprint, then build copies of it anywhere, guided by holograms.

Holograms that look like the real blocks: the layer you're building in real shapes and textures, the rest of the build as a glowing blue wireframe (or solid blocks), projected from the Holo Wand a layer at a time. Show this layer, everything up to here, or the whole build.
Save a build with two uses of the wand, on opposite corners: the box fits itself and measures its height, buttons beside it grow or shrink any side, and a scan of light marks it saved.
Five starter builds in every world, to try it straight away, and any saved structure can become a blueprint.
Place it just right. Punch the buttons beside the copy to move it a block at a time, turn it, mirror it (stairs and doors face the right way) or fly round it. A punch is a click, a tap or a trigger, so it works on every device. Move a build after starting it, too.
It shows you what's next: the next block you can place has a yellow outline, wrong blocks a red one, and the side panel says what the next block is, how far and which way, and what your layer still needs.
Build it your way: by hand (blocks turn to fit), Easy Place (use any item on a ghost), placing from your inventory just by looking, or the Printer, which builds it from the chests near you, the blocks flying into place.
Never run short: What do I need? counts the chests around you, the wand on a chest takes out what your layer needs, and Refill from chests tops you up when you run out.
Build together. Friends carry on your build, everyone who helped is named when it's done, and builds wait for you, even across restarts.
For operators: Admin settings (who can use Holobuild, and a switch for every feature), placing a whole blueprint in one click, and undo.
No experiments needed: works on Realms, servers and single player, in 29 languages.
With BedrockRelay: blueprints in and out from the dashboard, and live build cards on Discord.

Type /holobuild, or craft the Holo Wand (glass, a gold ingot and a stick) and use it.

By Rob 'myGen' Hall. Holograms use block models, the block atlas and
face particles from Construct by ForestOfLight (MIT).