Ok, I understand you I think.
Think of a sequence as your Master Tape. A sequence contains your timeline where you drop your video clips and perform other edits. In Premiere Rush you can have multiple sequences if you want. For example, let's say you create one sequence for your video project that's 5 minutes long. And then you want to create another video that's 30 seconds long using the same source material. You would create another sequence in your project and use the same footage from your project panel. This way you don't have to create another new project to make the new version of your video. When you start a new project in Adobe Rush it creates your first sequence for you. You can add more sequences from the File Menu but in Rush they don't work together, they are independent of each other, which means you can't combine two sequences together. They are independent "master tapes" if you will. When you export your video you will export whichever sequence is open at the time.
I hope that answer was more helpful and easy to understand.
AdChoices