A: On the Microsoft Connect site it's possible to see a list of all products that are currently accepting suggestions. You can also submit requests.
If you have a relationship with Microsoft, such as with an account team, you can make requests and work with Microsoft teams to help drive feature requests to the product teams. That's not a guarantee they will be accepted, however.
See FAQs on Windows, virtualization, systems management, and all things Microsoft, at John Savill's FAQs.