Is it possible to do a bow attack and not be adjacent to enemy in Battle for Wesnoth?

I just started to play Battle for Wesnoth. I did some of the tutorial and I have started a novice campaign. When controlling say the elven archers, I wish to do an attack by bow. Given that it is a range weapon, I would assume I could be several squares away and attack the enemy. Every time I attack with it though, it seems that the game requires that I be adjacent to the enemy to carry out the attack. This is by clicking on the archer then clicking on the enemy. Is there a way to do a true range attack with a bow from several squares away? Seems like the learning curve would accelerate quite a bit if I find out how.