AFAIK the Polish Books tool will only work if you have an EPUB or AZW3.
Thinking wishfully, if I had
Recalculate size 'button', when I downsize a comic or video in place, I wouldn't have to re-add (replace) the resultant cbz/mp4 to update the Size column. Ditto if I edit a DOCX in place using Word or Writer. See
https://www.mobileread.com/forums/sh...&postcount=573
BR