/linkso
Links your streamed objects together so moving or turning any one of them moves them all: /linkso [number] [number] [more numbers...], or /linkso [number] for your selected one; /unlinkso takes one out
In the game
Usage: /linkso [number] [number] [more numbers...] (they move and turn together: moving any one moves them all)
/linkso [number] links your selected streamed object with it. /unlinkso [number] takes one out of its group.
What it does
Not explained in detail yet.
Wiki