how to edit cloudwatch dashboard

To edit a graph title on a CloudWatch dashboard like "Automation-Manual-Labeler-DLG1" and change "LINE-LEVEL METRICS (Linea 5)" to "LINE-LEVEL METRICS (Line 5)", you would normally follow these steps:

1. Open the CloudWatch console at https://console.aws.amazon.com/cloudwatch/
2. In the navigation pane, choose Dashboards, then select your dashboard (Automation-Manual-Labeler-DLG1)
3. Hover over the graph with the title you want to change
4. Click on Widget actions in the upper-right corner of the graph
5. Select Edit
6. Change the title by clicking on the pen and paper icon next to the current title or directly on the title itself
7. Enter the new title "LINE-LEVEL METRICS (Line 5)"
8. Click Apply or the check mark
9. Click Update widget to save your changes

However, you mentioned that you only have "edit (read only)" permissions, which is preventing you from making the actual changes. To get the proper permissions to edit the CloudWatch dashboard, you'll need to:

1. Contact your AWS account administrator
2. Request additional IAM permissions for CloudWatch dashboard editing
3. Specifically, you'll need permissions that include actions like "cloudwatch:PutDashboard" and "cloudwatch:DeleteDashboards"

Once your permissions are updated, you should be able to properly edit the graph title and ensure QuickSight can fetch the data correctly.
Sources
Editing a graph on a CloudWatch dashboard - Amazon CloudWatch
Renaming a graph on a CloudWatch dashboard - Amazon CloudWatch