In plasma 1 it is possible to change the workspace by hovering over pager and use the scroll wheel of the mouse. This functionality hasn't made it into the plasma 5 version of pager (yet).
I think it would make using plasma 5 more consistent, given that one can switch between applications by hovering over the task manager and using the scroll wheel, too.
Thanks. Will fix.
Git commit e3cc1688f000ee35485e16350c13fe307f2bf846 by Martin Klapetek.
Committed on 19/06/2014 at 23:40.
Pushed by mklapetek into branch 'master'.
[pager] Add changing desktops by scrolling mouse wheel
Reviewed-by: David Edmundson
M +7 -0 applets/pager/package/contents/ui/main.qml