Thanks for your responses and the kind words.
You wrote “Can your plug in rename the photos in sequence?” The short answer is no, MLA does not have any features for changing the file names of items in your Media Library. It’s not a simple task, as you can tell from these related support topics:
Bulk image name change
Bulk rename file to lowercase
Custom Field Map All Attachments not working (Starting about nine posts into that topic is a discussion of the Image Editor, Enable Media Replace and so forth.)
I am not at all an SEO expert, but I know that the file name is just one of the elements that goes into a page rank. You can get good results from adding keywords and relevant phrases into the caption, ALT text and other WordPress fields that accompany the file name itself.
If you’d like to continue this discussion, please open a support topic so other MLA users can benefit from the results. Questions and responses about plugin features and application tasks are more appropriate there. Thanks for your understanding and your interest.