To add or customize the dashboard follow the below steps:
Step 3: Click on the Edit Dashboard button.
Step 4: Click on the "+" icon to add a panel.
Step 5: Click on the "+" icon again.
Step 6: Click on the panel you want to add and click on Add Panel button.
Note: when you select detailed view then you can add only detailed panels and if you select summary view then you can add only summary view panel.
Step 7: Click on the Save Dashboard button