Scrolling horizontally / vertically

[klues]

User feedback:

As an option to fixed boards, I would like to be able to scroll vertically on a board (like Proloquo2Go and TD Snap), and also horizontal scrolling (SonoFlex). This would allow having the same board on a large screen, a tablet and a mobile phone for those who have been using the same board and vocabulary configuration for years.

I'm not sure how many user really would need/use this. So if you're reading this and agree, please add your comment or reaction.

[jamjolu]

I am not sure, but having that option would benefit those who need to access their grid with lots of elements on a small mobile screen vs. their normally available larger device.

[klues]

Yes, theoretically. However I'm not sure how many users will actually use and need it?! Most will use either one device everywhere (e.g. Tablet) or different devices where each has a quite big screen (e.g. PC and Tablet). I can't think of a specific user or use case where one would use a big 30 inch screen at home and then a small smartphone on the way.
I think the person who gave me this feedback said that it's maybe more efficient to scroll on a page than navigating through pages, however I doubt this and personally I don't have seen anyone using an AAC app with scrolling.
For instance also see this amazing example of an extremely efficient user of a talker - no scrolling, but motor planning: https://youtu.be/AFt-NT5wsDQ?t=107