Relocator

Relocator teleports a whole structure. A player places the block, sets a domain in its menu and fuels the device with Rosen Catalysts. Every block inside the chosen footprint is carried to the destination, and the Y coordinate can be left blank so the structure snaps to the ground instead of a fixed height. The rotation of the structure can be changed as well, which helps a build fit a new surrounding terrain. Layouts work with the front door facing the same way in both places.

Each teleport is logged in an Address Log, which records past locations so a player can return to them later. Inventories and the contents of other modded block entities that use Capabilities for energy or fluids are preserved through the move. The default maximum domain is 1000000 blocks, and the size can be changed in the mod configuration, though larger domains take longer to load.

Relocator requires Forge or NeoForge and runs on the client and the server, so both sides need it. Files are published for 1.20.2 and 1.21.1 and are released under All rights reserved, so the code is not open source.