The default parameter settings of the Operations Dashboard display the average End to End Time over the past 1 hour.
When the dashboard is loaded, you can change the parameters. If necessary, click Show Parameters to display the settings you can change.
Click Apply to update the dashboard with the new settings.
The parameter settings are automatically saved, and will be applied to the dashboard the next time you display it.
For more information about managing Operations Dashboards, see Using Operations Dashboards in the documentation.