T
TDarien
Guest
You can always attack from a hidden position with advantage if are allowed to make that attack normally. However, you cannot make attacks from behind total cover and if you give up your total cover to attack then you are no longer hidden (assuming there is nothing else besides the cover that keeps you unseen).
Moving out is all you need to break hiding. The approach statement was just an example and not a requirement to break hiding.
Well said. I will add however, that under most circumstances, the DM should allow a hidden creature moving out of total cover to attack to retain benefits of being hidden (advantage on the attack). However, that is 100% the DM's call.