Sync and Video : Working with Video in Pro Tools : Configuring Video Import Options : Destination Section

Destination Section
The Destination section of the Video Import Options dialog lets you choose a general destination for imported video in Pro Tools.
Main Video Track
The video file is imported directly to the track that is currently online (known as the main video track) and into the Clip List. If no track is currently online, the video file will be imported to the last existing video track that was online.
New Track
Each video file is imported into its own individual track and into the Clip List.
Clip List (Pro Tools HD, Pro Tools with Complete Production Toolkit, and Pro Tools with an Avid Video Peripheral Only)
Each video file is imported directly into the Clip List, where it will be available to drag and drop into the Timeline.