thank you again kind sir,
i found the error of my ways in your test cap, but not until after much gnashing of teeth...lol.
i initially thought i was making/writing the event for scrolling wrong, and i tried several methods. then, i thought i had the scene dimensions setup wrong somehow, still to no avail. finally, i had to say to myself, your cap is doing it right, and my cap is doing it wrong - so what's the difference?
i setup 'my' scroll event just like yours - nothing. setup my window and layout dimensions just like yours - still no love. i looked at them both and thought, why is mine not working, i have the same scrolling event, the same dimensions, and i'm doing on it on the start of the layout just like he...ah'haah.
i had my scroll event in my 'start of layout' block, and because visually it looked the same as your 'every tick' block, i assumed it was the same. which it most definitely was not.
i now have scrollage...thank you sir.