I can't seem to find a way to push apps out to specific classes. Ideally I'd like to be able to do this in both Users-VPP Assignments and in Mobile Devices-Apps.
I did find the Classes option for eBooks in Mobile Devices-eBooks. It's strange that it's available for eBooks, but not Apps.
At this point I only need to push out eBooks to specific classes, but in the future I will need to push out apps to specific classes and I'd like to be able to do that using managed distribution.