Greasy Fork is available in English.
Shows all pages at once in online view for these sites: Alandal, Asura Scans, Batoto, BilibiliComics, ComiCastle, Comick, Dynasty-Scans, INKR, InManga, KLManga, Leitor, LHTranslation, Local Files, LynxScans, MangaBuddy, MangaDemon, MangaDex, MangaFox, MangaHere, Mangago, MangaHosted, MangaHub, MangasIn, MangaKakalot, MangaNelo, MangaNato, MangaOni, MangaPark, Mangareader, MangaSee, Manga4life, MangaTigre, MangaToons, MangaTown, ManhuaScan, ManhwaWeb, MangaGeko.com, MangaGeko.cc, NaniScans, NineM
There already is one. On the left side of the page number there is a reload button for that specific image, when your mouse cursor gets closer to the button it brightens up.
However on this site I recommend you wait all pages load before trying to reload a page. Mys script will actively try to check if all pages loaded correctly and try to fix it, it may fail thou, that's why there is the manual button.
g.e-hentai.org/Exhentai
Sir is it possible to put the click here if the image fails loading?
because some of the image wont load fully