Start in the Projects list and select the blue button in the top right called New Project.

Select New Database to create a new project using another database as we template.
Select Existing Database when adding a project to an existing database, forming a multi-project single database setup.

Give the database a name and pick a database below as a template to build from.

Select Next to go to step 2 - Details.

Fill out the project details and select Next to go to step 3.

Select Create a Project to complete the process.

If create a multi-project database, select the database to append a new project to and select Next.

Update details and determine if all users should be copied from the other project and then select Next.

Select Create a Project to complete the process.