You will determine the number of people as you are setting up your story project. However, once your Quilted project has launched, you can still add more people as long as it is before the story deadline. You can do this by sharing your unique Quilted project link and they can respond by entering their name and email address.
How to access Admin dashboard and the link to invite participants after the launch date
Login in to the video dashboard at https://app.quilted.io/signin and select "View Story" for your desired project. Then, click "Send More Invites" to access where more people can be invited by entering their email or phone number.