Anything I can do about this space on the right side?

[Jayinem]

Disclaimer: this is a very old Launchbox so maybe nothing can be done but thought I'd ask anyway. I had a lot of trouble when updating with half my games not showing up the cover art etc.. so I decided I wasn't going to update. This Launchbox is from like 4-5 years ago. Just wondering if back then there was a way to close this space on the right side? It just would better if everything was centered. Not sure why so much space was needed on that side yet none on the left side? If I increase the size of the boxes by 1 more pixel it shows 6 instead of 7 games on each row but it doesn't move any to the right no matter what. 

 

 

Edited 5 hours ago by Jayinem