need help saving a point

well.. in my map when the timer expires all units will be taken to a place to fight. but when the battle is over i need to return survivors units to they original position when they was located when the timer reach 0 (cero (expires))

any ideas???

by the way... only heros will be taken to fight (a duel) but other units will be walking and fightting away from the hero battle. (they got orders to walk and atack to diferent points (units not controled by users)) if i said "pause all units" amd after the duel i said "unpause all units"...... all paused that gets unpaused will keep walking-Atacking to the point i ordered them with a trigger or they will not walk anymore???

Store the X and Y position of the heros in real variables.