Hi there guys. I've been recently painting an Air Nippon 737-200, however, I don't know how to go about painting the wings. Basically I want the rising sun on the left wing only, but in the paintkit, it looks like this?

It then shows up on both wings.

 

Is there any way to get it on the one wing only?

The original author mapped the plane to use the same area on the texture sheet for both wings, therefore, it cannot be changed.