The 1SE PRO subscription allows you to create multiple projects with ease. Simply go to the projects menu on the top nav, and then tap the blue "Add Project" button. This will bring up a screen that allows you to name the project and select the type of project.
Freestyle: Provides the freedom to use many seconds without the limits of the calendar. You can re-order the seconds as well. Finding the perfect order for your video.
Timeline: This is your more common calendar project. You can add up to two separate seconds per day. A wonderful way to build your video diary.
TIP: Keep in mind your seconds are attached to these projects. So deleting a project will delete those seconds. It's impossible to copy and paste seconds from one project to another right now.