Modify a Graph's Title
CloudWatch provides a default title for any graph you create. You can edit the title and change it if you want.
To modify a graph's title
Open the CloudWatch console at https://console.aws.amazon.com/cloudwatch/.
If necessary, change the region. From the navigation bar, select the region that meets your needs. For more information, see Regions and Endpoints in the Amazon Web Services General Reference.
In the navigation pane, click Metrics.
In the CloudWatch Metrics by Category pane, select a category to view available metrics.
Select the check box for one or more metrics.
In the details pane, click the title to edit it.
In the pop-up box, enter a new title, and then click Save to update the graph's title.