Is it possible to configure parallels to enable scrolling on hover? (Mac host, Linux guest)

Right now on my mac if my focus is on, say, Pages and I mouse over Safari and scroll, the Safari window will scroll, even though I haven't clicked on it.

On my previous mac, where I used Virtualbox, the same would happen if I moused over the Virtualbox VM - the active application in the VM would scroll.

This does not happen with a Parallels VM - I have to click on the VM before I'm able to scroll in the application. Is there anyway to configure this so that it will scroll without clicking first?

Thanks!