On Amazon you can sell Items with different Conditions - New, Used, Refurbished, Collectible, etc. If your Item is Used or Collectible you are able to add additional photos to the Item description.
In M2E Pro you can also add Listing Photos for Used and Collectible Items, you are going to List on Amazon, during Listing creation.
You have a possibility to select a source for the Main Image as a Product Base Image or as a value from according Magento Attribute.
After that, you can download Up to 5 Photos for your Item or to use an appropriate Magento Attribute as a source for Additional Images.
Listing Photos are available to buyers on a particular Offer Listing Page on Amazon.
Also, these Photos can be automatically revised if Images option is set Yes in Revise Rules of a Synchronization Policy, that is used for this Listing.
Note: If Product Condition is different from Used or Collectible (even if Condition value is taken from selected Magento Attribute) Listing Photos option will not be used.