Thank you for your post.
FileMaker Pro does give you the ability to import a folder of images, but each image will be placed into the same field in separate records; not the same record. One way to get around this is to create an "ID" field, and then create a second table that includes an "ID" field and a Container field. Then, create a relationship between these two tables. You can then import the folder into this table, each image being placed into separate records, and then update the "ID" field with the "ID" of the original record. As an added benefit, this method also reduces the number of fields in your original table. Using your original method, if two images appeared for one record, that would leave 13 fields empty. The new method would just display the two images. Does that make sense?
Let me know if you need clarification for any of the above concepts.