Ease of Scrolling? Mac OS 10.14 Mojave

Presently the only way to scroll the Library that I have found is either dragging the scroll bar on the right or using the mouse wheel, when the mouse is over the albums.
Page UP/Down or Arrows UP/Down on the keyboard have no effect.
Over use of the mouse only leads to wrist issues and it would be preferable IMHO to simply use the arrow keys or even the Page Up or Page Down keys.
Thanks