The Metrics page allows you to quickly create key metrics charts to monitor on a per-account basis using any available metric. You can also load an existing chart created using the Chart Explorer here to be filtered for the current account.
To create a new chart, click "Create chart" on the top right. On the pop up modal, provide a name to the chart and specify the details for the time series chart. Click "Add" to add the chart to the dashboard, click "Save layout" to save the dashboard.
To load an existing chart, click "Load chart" on the top right and select the chart from the pop up modal. To save that chart to the dashboard, click "Save layout"
Use the arrow icons next to the chart title to move that chart up and down in the dashboard. You need to click "Save layout" to save the new chart orders.
Once the charts are saved to an account, the same charts will be automatically created for all other accounts in their Account Details - Metrics page.
Note that charts loaded to this page will be copied and saved as a separate chart unique to the current account and not linked to the original chart created in the Chart Explorer. Updating the original chart won't automatically update the charts already loaded to this page. If you'd like to do so, you'll need to reload the updated chart and save it again.