Bow and Arrow (Transporting object)

Hey guys! I'm working on a simple bow and arrow attack animation for the fun of it, but i'm a little stuck. I know how to play my "draw arrow" animation on the interaction of a specific key, but i'm not sure how to code my arrow to move. For those of you kind enough to assist me, I would need an adjustable speed for the arrow's transformation, an adjustable speed for my "draw arrow" animation, and an adjustable delay time for the arrow's transformation (to make sure everything is timed perfectly) . Thanks!

PS. If your not entirely sure what I'm trying to ask, I just need a code that makes an object move when I press a certain key. :)