Effects Palette: Image -> Reformat. Drop this on the single exported file, say on V2.
Make sure the track with the reformat effect is active and effects mode is open. Also click the track you want it to pull edit points from. In the effect panel, click Subdivide. It will add cuts to the reformat effect based on the other activated track.
After this you want can Alt/Cmd+Lasso left to right to select all the clips on the track with the reformat effects and hit Remove Effect to get rid of the Reformat effect.
—————-
Michael Hancock
Editor