Premiere Pro - Two Screen Setup on Mac
This short video shows you two easy ways to use two monitors to edit videos in Premiere Pro. You can add your monitor for a full screen view of the video or you can drag the Program Monitor Panel onto the other monitor. Watch here to learn how to do it, and also how to reset your displays back to normal.
I also have a video showing how to set up two screens with Premiere on Windows here .... • How to use Two Monitors in Premiere Pro