Once you have added the Volt Operator to the OpenShift CatalogSource, you are ready to install it using the OpenShift web console.
Log into the OpenShift web console.
Switch to the Administrator view, then click on OperatorHub under Operators.
Search for Volt among the applications. Once you find it, click on the Volt Operator tile and press the blue "Install" button.
On the next screen, you can customize how the Volt Operator is managed. You must pick a specific namespace where the database will run, then select that namespace for the operator (mycorp in the following examples).
Finally, click the "Install" button at the bottom of the page to install and run the Volt Operator.
Documentation