Temporarily Select The Zoom Tool January 15, 2017. Posted in: Tip Of The Day. Press the Spacebar Ctrl (Mac: Spacebar Command) to temporarily select the Zoom tool. Click to zoom in. To zoom out, hold the Alt (Mac: Option) key and click. Release the keys to return to the tool that you were previously using. « Previous Photoshop Tip: | Next Photoshop Tip: » Get The Tip of The Day in Your Inbox! Sign-up for the PTC Newsletter to receive a weekly re-cap of the Tips of The Day. That way you'll never miss a tip. You'll also get instant access to the Subscriber Only Tutorials! Enter your email below to sign up! Your Email Address: You Can Also Get Daily Tips On Your Feed! Every Photoshop Tip of The Day is posted in our Facebook & Google Plus, Twitter, LinkedIn, and Pinterest pages.