Use the high-tech anchor key once to save your current position. Use it again to return there, as long as you are in the same dimension. After returning, the anchor resets and is ready to save a new location. Each anchor stores its own point.
Use the projector block to create a short walkway of up to five transparent, indestructible blocks in the direction you are facing. You can extend a walkway by using another projector on its temporary blocks. A recovery marker appears above the end of the bridge; right-click it after crossing to retrieve the projector. The bridge and marker disappear after 15 seconds.
Aim at a block or entity to see its distance beneath your crosshair. The range finder measures up to 20 blocks.
Place the stepped column and right-click to activate or deactivate it. When active, its cyan-blue energy field shows the protected area and automatically pushes hostile monsters beyond the barrier, leaving one block of clearance. Crouch and right-click to pick it up whenever you like.
For multiplayer, install PocketTech on both the client and the server.