You can export images, image labels, swatch image and video urls and change them with a bulk file. You can edit and upload them back into StoreAutomator.
Here are the steps:
1- Select the products and go to Export>Images.
2- Download the file from the Notifications from the top right.
These are the fields in the file
IMPORTANT NOTE: If you want to delete a specific field data, you must leave the cells as empty. This action will delete the data which you have already in SA, when you upload the file back into SA.
IMPORTANT NOTE: When you are entering your data into the image fields, please fill the empty cells within the order. (First image_url_ 1, then image_url_2) You must use the same logic for the video urls too. Otherwise, you are most likely to get an error when you upload the file into SA.
3- After the changes, upload the file back into SA.