Projects are a way to namespace different apps and resources across a single cluster. There are many ways you can categorize your projects in a cluster.
If you are an agency and managing multiple portfolios using a single cluster, then each project will represent a single client. You can create new projects from the cluster page as shown below:
You can configure project-level settings on the settings tab of the project. Currently, there is no way to rename a project, but you can always delete a project.
NOTE Deleting a project will remove all the applications and services running in that project and this operation cannot be undone.