I'm working on a Mac and have two monitors. I open LR on the smaller second monitor and want to display the image on the larger better calibrated second monitor. Whenever I open LR I have to drag the second window over to the working monitor. When I open the #2 radio button, the choice "Show Second Monitor Preview" is grayed out. If I edit the image in PS then go back to LR, I have to tap on the radio button to open the preview image and drag it again to the second monitor.
How do I get LR to open the image on the secondary display without dragging it over?