How to add pictures to my album?

I mean from the manga here. I know how to import pictures

Open the manga chapter u like and then u need to be in desktop version shown in the top right 3 lines..........and after that it's better in multiples pages so u can scroll in a go...........and then click on any image that u want to save in that chapter and it shows how u can save it into an album...........

And if u want to go back to normal version.........click on ur profile top right........in the options u'll see mobile version

Thanks