How supply can be consumed from Transport Point?

13.2a. A Transport Point can move, pause to use some of its load, and then move further in the same phase. While “pausing” the carried SPs can be used to pay for all kinds of fueling and construction/repair. There are two important restrictions: the Transport Point must finish moving before another unit is moved, and upcoming combat/barrage costs can never be pre-paid in this fashion. SPs need not be unloaded from a Transport Point before being used.