How to rotate screens separately?
Yes, you should be able to orient each screen separately. In fact, here is a link of that very thing being done.
To access the screen rotation option in OS X:
- Launch System Preferences.
- Hold down ⌘ cmd + ⌥ alt/option and click Displays.
- On the right side of the Display Preferences, look for the Rotation drop down menu.
- Set the rotation you want.
- Confirm the change and quit System Preferences.