Next, go into each individual project, open the 16:9 sequence, select the entire sequence in the timeline, copy, and paste it over in your 4 way sequence. Name your sequence the same as your project, in this case I’m using 4 Thanksgiving Side Dishes. You can do this by going to File -> New -> Sequence, or click on the little icon on the bottom right of the project panel and choose Sequence. Make sure you are in your 4 way project, then create a new sequence.