You can either submit one request or multiple requests. We would suggest submitting your requests in batches, meaning multiple requests at a time. This way more time will be saved in the editing process as your editor can jump onto the next one right after uploading the previous one for review.
Batching your requests will also save you some overall time in the submission process.
You can also duplicate your requests if they are very similar and only a couple of fields need to be changed, thus saving your time.
Reminder: Every video request should be submitted as a separate request, but if you describe every video or give a good idea of what you want, you can submit them in a batch. Your editor will separate it to different requests to keep track.