What software program and version are you using? Your question might be more suitable in the Sonar Producer and Studio, for example, forums since your question has nothing to do with Cakewalk audio or midi interfaces.
When you play your project it doesn't keep scrolling so the measure numbers at the top change to keep up with it? If that is the case, then try pressing the ScrLk key on your keyboard. That toggles the auto-scrolling feature on and off.
As far as moving your clips, it sound like you have the snap to grid feature enabled and it is set to a high increment like whole or measure. You can toggle the snap to grid feature off and on by pressing the snap to grid button, which looks like a box with vertical and horizontal lines on it. If you turn that off you can move your clips anywhere you want, If it is on it will move your clips to whatever note increment it is set to. Measure, whole, half, quarter, either, etc.
You can also zoom your project out so you can see more of it at one time by pressing the magnifying glass button with the - (minus) sign on it in the bottom right corner of the track view.