[Evil Overlord]

I'd like to export selected covers with the name format: FirstName_LastName_-_The_Book_Title. In other words, replacing spaces with underscores.

Thanks to another post on this forum, I realized I could simply save the selected books to disk and search for jpgs. That works fine, but doesn't solve the underscore issue, leaving me with hundreds of files to rename by hand.

I see that the template language and functions are clearly capable of solving this problem, but I'm afraid it's beyond my expertise. Any suggestions on a sequence I could plug in? So far, I have:

{author_sort}/{series}/{title}_-_{authors}