I want to have a dedicated mouse and keyboard for Parallels. I have Dual Monitor Support on my MacBook enabled. I have Parallels running on the other monitor. I want to have a keyboard and mouse in front of the monitor and have it just for Parallels while my internal monitor, keyboard and mouse will be used for OS X. Can this be done? When I go to connect USB Keyboard on Parallels, it says the device is being used by another process. How do I keep OS X from taking over the external mouse and keyboard so I can use it with just Parallels?