[McAroni]

I think you have to set the half page turn for the whole song. If you have set the display mode to scroll vertically, then you can also scroll half a page by checking the half page turn box. I prefer the display mode half page turn. Then you will see the beginning of the next page in the upper half of the screen and the setting affects the whole song.
See also:
https://www.youtube.com/watch?v=V_8GXnlNfm0