This is one of the most important things you can do in Plytix. But there is no out of the box way to do it in bulk.
The reason for that is that each company has a different Image naming convention, so there is no one solution that fits all, unfortunately.
But there is a relatively simple way of doing it.
1. Once you have uploaded your images to the Assets section, select and export the ones you want to map in a CSV choosing URL and File Name.
2. Open that CSV in Excel or Google Sheets and split the File Name to extract the SKU or unique identifier those images have. If you don't have any unique identifier in your File Name, you will need to add a column to the CSV and simply paste the SKUs there.
3. Run a Product import using that CSV to map the SKUs you extracted ( or added) to the URLs. You may want to create individual Media Attributes or a Media Gallery, depending on the usage you want to give to these files.
If you are not 100% sure about how to do it, don't hesitate to reach out on the Chat and we will be more than happy to help you out 😎