Well, those sprites can be mvoed via SCV, Probes and Drones as far as I remember
Apparently workers can pick up sprites, according to payne at least... Is this true, and how does one do it?
None.
preplaced unit sprites act almost exactly like their unit counterpart. unit sprite powerups are the same. When disabled, they can't be picked up and have no collision box.
Almost any sprite can be "moved" with a worker via the hallucinated powerup glitch. It's pretty useless, though, since it won't pick anything up, just make a new sprite.
"Parliamentary inquiry, Mr. Chairman - do we have to call the Gentleman a gentleman if he's not one?"
He was talking about the pieces of terran mech units, (turrets).
None.