Viewing and Updating the Query for a Default Metric Chart
Open the query for a default metric chart in the Metrics Explorer page. When you open the query on this page, you can update the query, and immediately see the effects of the update on the metric chart.
Default metric charts are available on the Service Metrics page and under Metrics on resource details pages in the Console.
For information about directly editing MQL expressions or changing queries by using the CLI or API, see Editing the MQL Expression for a Query.
For information about queries on the Metrics Explorer page, see Creating a Basic Query.
For query troubleshooting, see Troubleshooting Queries.