Yes- you will be first batch! As long as everything (transcripts, letters, DAT scores) is finalized within the next couple of weeks you should be good to go.
When you input your experiences (work experience, EC, academic enrichment, etc) you will have the opportunity to check "add to cover page" for each individual experience. Choose your favorite experiences or the ones you think represent you best. You can check a maximum of 3 different experiences for most of the sections. When your app is generated, the cover page will automatically be made with the experiences you checked off. Should seem very straightforward once you are working on it! 🙂