Not every Mac user has a need to switch the resolution on their screen. In fact, it’s just no longer as common as it once was back in the day when games and other apps required specific screen resolutions. Still, those Mac users with multiple displays or special apps don’t appreciate that Apple has dumbed down the screen resolution controls to mere basics.
This is about all you get these days.
There’s not much going on with the System Preferences > Displays controls. Apple keeps it simple which works for many Mac users but for those who have multiple displays and need to change resolutions on the fly there’s Resolution Switcher, an inexpensive Mac utility which does what it says on the tin. It switches the Mac’s screen to different resolutions.
Resolution Switcher works on Macs with a single display and Mac’s with an extra or dual displays. Not only can you change the screen resolution on the fly with a click to the Mac’s Menubar, the display can also be rotated. On both displays in a dual display setup.
How easy is this?
Click the Menubar icon. Select the screen resolution you need (choose from different aspect ratios and frequency). Done. One more click will apply a new resolution to a second display connected to your Mac, and another click will mirror two Mac displays side-by-side.
The same Mac app developer also publishes Split Screen which I use in place of OS X’s clumsy split screen system. These are exactly the kinds of apps Mac users need to know about because they provide functionality that goes beyond what Apple puts into OS X.