Is this possible at all? It seems lots of sellers are able to do so but I don’t know how (usually just use the default)
What item are you trying to list?
The first photo in the listing of “Screenshots / Photos” will be the primary photo. You can do that by deleting the first one you don’t want then upload the one you want after. Or when you’re creating a listing you will be asked to optionally upload your own. The website disallows deleting the first photo for some categories, but I think the Android or iOS app allows it.
I see now, thank you.