Use the Event Pan/Crop window and make video frame smaller by dragging corner towards the middle.
If you mean something else or have another problem, please explain in more detail.
Take a screen shot of your Event Pan/Crop windows and upload to forum.
Upload a copy of your .veg Project File and tell me the time stamp of what section you are having a problem with, so I can inspect your settings.
Remember to turn everything off at least once a week, including your brain, then sit somewhere quiet and just chill out.
Unplugging is the best way to find solutions to your problems. If you would like to share some love, post a customer testimonial or make a donation.