Hi. You don't say whether you have worked on the project since adding the clips. If you have (which I assume you have or else you would have just started a new project with the overlap set) I think the only thing you can do is to set Auto Ripple to On then, starting at your first clip, pull each clip left the required amount. As you pull the clip a small box in the overlap will show the overlap period. I do this normally when editing. I pull all my clips onto the timeline with the period set at 14 frames. I then go through the timeline, as above, creating different transitions and overlap periods. You'll be surprised how quickly you can do this. Be careful though. If you have a lot of title overlays make sure you select the appropriate type of Auto Ripple.