Sort by Number is incredibly useful for annoying human named files. I'd rather have several very similar transformation filters for the synthesized value list sort though. Sort by First Number Sort by Second Number Sort by Nth Number (input popup, maybe a submenu?) Sort by first 2 digit number. Sort by first 3 digit number. Sort by first 4 digit number. Sort by RegExp match E.G. 1.jpg 10.jpg 11.jpg ... 2.jpg 20.jpg 21.jpg ... 3.jpg 4.jpg
See Dolphin sorting mode in Dolphin settings | View | Content Display | Sorting mode. If you could select the wanted sorting mode in Dolphin and use sorting mode "as in Dolphin" in Gwenview, then you can use that order there.