You started drawing in the editor without an account, then chose to sign up: your drawing is waiting for you. At your next creation, in the same browser, Continue Where You Left is the first method offered:

The method that resumes your drawing

  1. Continue Where You Left goes to the project's information (Page unavailable): its title, its units, and whatever you want to add.
  2. Location places the project, if you wish.
  3. Create Project saves your drawing in this new project and opens it in the editor.

Once the project is created, the method goes away: your drawing is in the project, on the dashboard. Until you resume it, the other methods stay offered below it.