Hi @brookspatola,
Working with this kind of folder-based collection won’t let you do much on the items inside the collection.
I suggest you to use this sample that will let you parse dynamically a folder (within the Experience structure) and create a data template to represent each item.
Based on this template mechanism, you’ll be able to add a button that would call the add to sharing queue action with the image path as a parameter.
Seb