Row actions are the quick actions that you see when you hover over a row of image / post / product. Refer the screenshot below.
Image Attributes Pro version 4.1 and beyond adds row actions to the Media Library and Posts / Page / Product list.
Row actions are very handy when you want to update the image attributes of a single image, post or product quickly.
While using the Row Action, the attributes of images are updated as per the settings in the
Bulk Updater Settings tab of Image Attributes Pro.