This app is basically made to allow your vendors to upload more photos on their listing. Simple, useful, effective.
Simply activate the app on your marketplace and it will automatically upgrade your listing creation form with more than 3 fields in the photo uploader section.
1/ Install and activate the app
2/ Once the app is activated, you have to set how many pictures your sellers can upload, in your order type parameters in :
Choose how many images a vendor can upload for each listing (max 10) :
Once you have increased this number, more photos could be uploaded when creating or editing a listing.