Pause Downloads from the Mac App Store
You can pause any active download from the Mac App Store by right-clicking on the apps icon in the Dock and selecting “Pause” from the menu. Resuming the download is just a matter of right-clicking again and selecting Unpause.
This is a useful tip if you want to quickly preserve bandwidth for another task, or if you started a download on something like a tethered data connection and you want to save your precious data plan and finish the download later.
This tip should be familiar to anyone who has paused an iPhone or iOS download by tapping and holding on an apps icon. The idea of pausing and unpausing app store downloads is clearly borrowed from the iOS world and for good reason, it’s useful!