To create an alert rule similar to an existing one, you can copy the existing alert rule, and then modify the settings as needed.
Prerequisites
The logged-on user has administrator permissions.
You have created an alert rule. For more information, see Create an alert rule.
Procedure
Log on to the OCP console.
In the left-side navigation pane, click Alert Center.
Click the Alert Rules tab.
On the Alert Rules tab, find the alert rule to copy in the Alert Rules list.
In the Actions column, click the More icon (...) and select Copy.

(Optional) On the Copy Alert Rule page, modify the basic information, rule configuration, and alert details of the alert rule.
Click Submit.