I have a Macbook pro with intel iris and radeon graphic card. On OSX i want to use the radeon graphic card for one user with an external monitor and on Parallels i want to use another OSX with another user using the intel iris graphic card with another external screen. So basically one Macbook pro with two graphic cards inside, two independent users, one monitor on display port, on monitor on Hdmi. two keyboards, two mice. Please program this feature! Many Macs have two graphic cards, it should be possible that two user could use one Mac at the same time.