Moves the object along the selected world axis (x, y, or z) at the speed selected. This speed is in units per second (21.3 units per foot). This movement is based on the world axis, thus a positive z movement will always move the object up, regardless of its local rotation: In world coordinates Z is always up / down (increasing upwards), X is east / west (increasing to east) and Y is north / south (increasing to north).
Note: MoveWorld will not work on Actors, including the player. Use SetPos for actors.
This is an example after a script I once picked up on the forums that makes a platform slowly move out and back once the player stands on it: