Also, if you just need more lead-in space before the tracks start, but still want your first beat to be at measure 0, open Project Settings and adjust the "Project starts on measure X) setting. If you set it to say, -2, you'll have two bars before 0. It won't move any items though, just sets the timeline 0 point. You can still record in the negative space. I find it easier to keep track of where I am in a project.