“Sidecar” is a MacOS Catalina feature that allows users to operate their iPad as a second display along with Mac. The same feature also permits the users of iPad Pro to work on their tablet through an “Apple Pencil” but the feature is only available on the latest editions of iPods and MacBooks. Luckily you can also use a third-party application known as “Duet,” if you have any older version of Mac or iPad. Duet allows users to use Sidecar over previous versions of Mac and creates a compatible setup to run the iPad as a second screen for Mac. Here is how to use your iPad as a second Display of Mac through Duet. Follow these instructions to know more: Installing “Duet” over Mac First of all, you have to get your Duet downloaded on your Mac. Once the download finishes, you have to double-tap on the downloaded zipped file. Unzip the file and expand the “Duet” app file. Note: You have to tug the file from the location where you placed it. It might be inside either the Apps or ...