Well my issue seems to be with utilizing the splitter.
I have tried by creating panel that contains the top list view -docked top / left / bottom (tried all three)- add a splitter and match the dock as the first list view, and then add the second list fill with a dock of fill.
The splitter nevers ends up in the correct place nor does it work on anything.
I tried it without the panel, but had the same results. Then tried with each list view in it's own panel and the splitter in one or the other panels.
As you can tell I have never worked with splitters before, and I am lost as how to implement it.
Today is the tomorrow you worried about yesterday.