button mapping

What I'm dying to accomplish is to navigate in PIE using buttons and the d-pad area without having to exit full screen mode.  I installed PIEPlus.  It supposedly should have these features but unfortunately, they don't work on the Diamond.

For example, changing the d-pad or the jog dial to scroll by line accomplishes nothing.  The scrolling stays by page.

PIEPlus also lets you remap the buttons.  However, there's not a single button in the list.  My diamond also has an empty list in Settings -> Personal -> Buttons.  I wonder if they're related.  Wonder if there's a way to bring them back.  From what I read on the internet, other people seem to have buttons in the list.

Why don't me use Opera?  Well, it doesn't display the html files I want to read.  They come out as empty screen.