An environment is a partition of your organization. Each environment has its own workspaces, its own content and its own access rights.
Typical uses:
Click the Environment picker at the top of the sidebar, then choose one.
Kubme also creates a first workspace in the new environment. The number of environments depends on your plan.
Right-click (or …) an environment:
You can't delete the environment you are in: switch to another environment first.