(Helps to have at least the Jump Boots and Jetpack Relics.)

Step one: Enter a customizable world, preferably your own, and scroll to the screen of preset blocks with the Window on top. 

Step two: Place four blocks of plating (bottom choice, gray)  in a vertical column.

Step three: Delete the top three blocks. There should be green smoke spouting from the top of the block. 

Step four: Repeat steps one-three in a separate location. 

Step five: Walk into/ jump onto the plating block emitting green smoke. Wait until everything you can see starts to look really wierd. 

Step six: Press the B button. 

Viola! If you follow these steps, you should successfully be able to teleport from place to place withing a world in Fortress Craft: Chapter 1. 

**Note, this experimental discovery was only made in the full version of Fortress Craft: Chapter 1. It is unbeknownst to me if it works in the demo version. Each player in a world has the ability to create a teleporter, but can only make use of their own. Pressing the X button whilst inside the green smoke of the teleporter, you will be "eaten by a grue" and will be respawned in the respawn area. If more than two telepoters are created by the same player, the two most recent ones will be the ones to teleport the player. It is also unkown if creating a teleporter using the workshop will work, though it will most likely be much too small to use. 

Have fun, Fortress Crafters! (;

i.go.grrr :3