When you drag and drop a media file from your Project Media Panel into your timeline panel, Adobe will create a new sequence for you to work on. As standard with any other timeline-based video editing software, you get a blue timeline you can move around to edit or watch different parts of your sequence. You can zoom in and out using the buttons you have on your timeline or use the (+) and (-) shortcuts to do the task faster.Your timeline is separated into two parts. The upper section holds your audio files, while the below section contains your graphics, images, and videos. So if you have a video file with audio, for example, audio and video will show in a different section of the timeline.