Please note that VEGAS 15 has removed the Track Motion feature, replacing it with a VEGAS Picture-In-Picture FX control. In doing so the border/shadow feature has gone. Strange decision - hopefully this will be added to the PIP (and Crop) fx later - soon please. At least the NewBlu Elements Flying PiP fx has this and many more options - and can be easier to use than the old Track Motion.
Next, hopefully, will be to smarten up the Pan/Crop control.