You gotta hit the hamburger menu to change to desktop mode and then you can tap the screen to add the picture you tapped to an album (multipage, single page the add to album will then appear at the bottom)
unfortunately u just cant i think. albums only work in desktop mode. u could try switching to desktop mode on ur phone but its pretty hard to read. u could also try screenshotting each panel and then uploading it to ur album but thats the long and inconvenient way of doing it.
It's annoying but you have to switch to desktop mode and turn off multipage.
Usually I'll read the whole chapter then go back and switch to desktop mode to add the panels I want to my album.
i mainly read from this site on my phone and i love saving panels to albums, but for some reason i can't do it on mobile/mobile google chrome browser? and i don't carry my laptop with me so there are sooo many panels i never got to save and i'm sad about that. i would like to prevent this in the future if possible! thanks so much