You can open any folder on your hard drive or network as a library. Opening a library means linking the folder to your Library view. You only need to open the library once. The library folder is available every time you open the application until you decide to close the library and unlink it.
TIP You can add a folder that contains images, sound files or video files to your libraries. This will allow you to quickly import those assets into your project. You can drag and drop images directly into the Stage or Camera view, and you can drag and drop sound files and video files into audio or video tracks in the Timeline view.