As posted by Marjorie Sacks from Adobe int he Adobe Premiere Pro Beta discussions.
Track targeting just got a lot easier in Premiere Pro (Beta). You can select and target multiple source or target tracks by holding down CMD/CTRL as you click and drag the cursor across multiple track buttons in the timeline panel.
Holding down CMD/CTRL + Shift while dragging will invert the targeted selection.
Yea I could not be happier about this, AVID always did a better job with track selection, and this does a lot to bridge that gap.
