Can't work out how I did it!

I have somehow customised the manufacturers page. I’ve manged to upload an image and some content and I have no idea how I got there, or how to change it. It’s something I set up about 6 months ago, and I can’t work out to either remove or change this info.



It seems really silly that I can’t work it out, but if someone can point me in the right direction that would be great.



Thanks

Just found it under product features.



Very embarrassing that it took hours to work out something so simple!