• See Apply default transitions between selected clips in the Premiere Pro CS4 Help.
  • Prior to CS4 the quickest way is to alternately use the "Page Down" and "Ctrl+D" (Ctrl+Shift+D for audio) keys in the timeline (sequence) window.
  • Or you can delete them all from the timeline and then "Automate To Sequence" using the default transition.
  • Steve Arecco from NY says:
Nope, this is the fastest way: purchase a shuttle pro then you can quickly design a macro that will do what you ask with the push of 1 button.
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