1) Switching Workspace
Click on the workspace name on the top right corner of the screen.
The drop-down menu will show you a list of all your existing workspaces.
Click on the desired workspace.
2) Renaming Workspace
To rename a workspace, click on the Workspace name on the top right corner of your screen.
Click the active workspace from the drop-down list. This will lead you to the Settings tab.
Enter the new workspace name and click on Save changes
Note: You can only rename a workspace if you are a workspace admin.