There are a few popular third party iOS frameworks such as AFNetworking and Parse that require you to add a number of Apple frameworks to your Xcode project. For example, if you add the Parse framework to your project you’re looking at also adding:
Adding each of these one at a time (with the pane closing after each addition) is annoying, so thankfully Xcode provides a quicker way using the Apple command key. To add multiple frameworks at once hold down the command key when making a selection in the Choose frameworks and libraries to add pane. After making all of your selections click Add.