Closing the final script in your editor will take you to the terminal.

src/ScriptEditor/ui/ScriptEditorRoot.tsx

@@ -668,6 +668,7 @@ export function Root(props: IProps): React.ReactElement {
       // No more scripts are open
       setOpenScripts([]);
       setCurrentScript(null);
+      props.router.toTerminal();
     }
   }