Usually I scroll with my touchpad through the pages. However, when revisiting an (almost) finished project I go to the “Spreads Vertically” view as my screen is big enough to display two pages in A4 format.
I noticed that the PageUp/Down and the Home/End key do not perform anything. The expected behavior would be that PageUp/Down moves gradually like when moving the mouse wheel and more importantly Home/End goes page by page keeping the exact same relative positions of the pages.
I also noticed that this somewhat works as it should in “Spreads Horizontally” even though the PageUp/Down command is a bit clumsy (but I don’t use that anyways).
I prefer working in the vertical view when looking for small errors, so I would really appreciate if you could add this missing function.
In Adobe Acrobat Reader PageUp/Down jumps to the next page and Home/End jumps to the beginning or end of the file, both as the denomination implies. For me either behavior would be fine, even though moving to the beginning or end of the project is not that often needed. Maybe it would make sense that Home/End moves to the previous/next Flow.
By the way, could you add an option in the preferences to make the “Page View/Galley View” button a toggle? I often click it and for me it is obvious that I toggle the view, otherwise I must perform two clicks at the moment.