How do I run multiple instances of Android Studio

http://stackoverflow.com/questions/18299698/how-do-i-run-multiple-instances-of-android-studio

1. Go to Settings -> General -> Project opening.
2. Check 'Confirm window to open project in'.
3. Create or open different project.
4. You will be asked if open a new window.

When you open the new instance you do not open anther android studio exe. Open from the existing running android studio.