In RB click where you want your dynamics Mitch . Lets say you want the middle verse to be louder than the other verses. Piano Roll and pick All on channels make a small reduction in the over all volume by clicking a little lower than full volume. At the same volume level click the piano roll at the start and end of that verse . Then grab the beginning mark you just drew and drag it up. The whole verse will go up in volume (or down) and it will be easy to adjust.