In any multiple pane view
Current behaviour
# Only most recently clicked window ("active pane") will scroll with mousewheel.
Desired Feature Request behaviour (perhaps as an option?)
# Keep most recently clicked window the "active pane" (responds to keypresses).
# Scroll-with-mousewheel behaviour works on pane over which mouse is hovering.
Thus I can more easily browse articles in my favourite classic/wide view with less clicking about.
uncomfortable mouse-handling in Feedreader
To solve the problem with uncomfortable mouse-handling in Feedreader you could try the freeware KatMouse.
This very small tool scrolls the window beneath the mouse cursor even when it is not focussed.
In the properties-dialog choose "Applications" and add the "feedreader.exe"
If you want to keep the usual behavior of your wheel button go to the "Wheel Button"-tab and choose "None of the buttons."
Works very well on my system.
You can find KatMouse on http://ehiti.de/katmouse/
Please excuse my bad english.
Greetings
Robertina