The last control upgrade of the Move power says that
"The character can perform fine manipulation of items, allowing him to do whatever he would normally do with his hands via this power at the power's range"
Now that's fine and everything, but what if a character knew say a stormtrooper group carried multiple grenades with it. Could a player making the necessary checks in theory just activate it? Expanding on that, how would you narrate a grenade going off when others are in range?