Exactly perfectly what I was looking for…

Thank you, thank you, this was exactly perfectly what I was looking for… The batch process works exactly as described, and removes both dashes and underscores from images already in the Library and nicely adds it to title, alt text and description, while leaving slug as is… For newly uploaded images it does same, filling in title, alt text and description with it…

It is nicely thought out, quick, with a well designed easy to use interface…

Grateful and kind regards…