Volume keys scroll, page turning like scroll

I find it more comfortable to scroll using the volume keys, on apps that support it, specially when reading long texts.

Specially if each key press advances or goes back one screenful worth, allowing for some overlap so that text lines don’t cut off horizontally and you can check the text continues from the previous frame and there was no accidental double tap.

Currently my workaround is to use a converter to make the page into an epub and use that on an eBook app, but this is obviously sub-optimal, specially when say, every chapter is on a different web address.