Using Two Monitors with Lightroom
Lightroom supports using two monitors, so you can work on your photo on one screen and also see a huge, full-screen version of your photo on another. But Adobe went beyond that in this Dual Display feature and there are some very cool things you can do with it, once it’s set up (and here’s how to set it up).
The Dual Display controls are found in the top-left corner of the Filmstrip (shown circled in red here), where you can see two buttons: one marked “1” for your main display, and one marked “2” for the second display. If you don’t have a second monitor connected and you click the Second Window button, it just brings up what would be seen in the second display as a separate floating window (as seen here).
If you do have a second monitor connected to your computer, when you click on the Second Window button, the separate floating window appears in Full Screen mode, set to Loupe view, on the second display (as seen here). This is the default setup, which lets you see Lightroom’s interface and controls on one display, and then the larger zoomed-in view on the second display.
You have complete control over what goes on the second display using the Secondary Window pop-up menu, shown here (just click-and-hold on the Second Window button and it appears). For example, you could have Survey view showing on the second display, and then you could be zoomed in tight, looking at one of those survey images in Loupe view on your main display (as shown at bottom). By the way, just add the Shift key and the Survey view, Compare view, Grid view, and Loupe view shortcuts are all the same (so, Shift-N puts your second display into Survey view, etc.).
Besides just seeing things larger with the Loupe view, there are some other pretty cool Second Window options. For example, click on the Second Window button and choose Loupe – Live from the Secondary Window pop-up menu, then just hover your cursor over the thumbnails in the Grid view (or Filmstrip) on your main display, and watch how the second display shows an instant Loupe view of any photo you pass over (here, you can see on my main display the first photo is selected, but the image you see on my second display is the one my cursor is hovering over—the fifth image).
Another Secondary Window Loupe view option is called Loupe – Locked and when you choose this from the Secondary Window pop-up menu, it locks whatever image is currently shown in Loupe view on the second display, so you can look at and edit other images on the main display (to return to where you left off, just turn Loupe–Locked off).
The navigation bars at the top and bottom of your image area will be visible on the second display. If you want those hidden, click on the little gray arrows at the top and bottom of the screen to tuck them out of sight, and give you just the image onscreen.