Go into the piano roll screen and grab the pencil tool. The little red 'stalks' represent the velocity of each note and you can drag the pencil across the top of all of them to set the value to maximum volume or grab the line tool to set the notes to another level.
Yes, I have a manual, except Im not at my house right now, which is where my home studio is. I am in my dorm room in college and all I have with me is my laptop and I needed a quick answer. so thanks again.