1. Right-click the Parameter Groups folder in view explorer, and select Add.
2. Enter a name for the group in the properties window that displays.
3. Select the hierarchy and then level for the group.
4. Use the Required property to determine if users will be required to specify a parameter for the group when they run the view and are presented with the View Prompt window.
Yes will require a parameter to be specified.
No will allow users to bypass specifying a parameter for the group.
5. You can now add one or more parameters to the group. See Add a Parameter.