Use the Hot Swap Rule Set dialog box to enable a new rule set and replace an already-enabled rule set. This ensures that the rule set does not miss any events while you make changes.
Hot Swap With
Select an enabled rule set from the list, which displays rule sets that are enabled in the same context—either job or system. The rule set that you select in this list will be disabled, and the rule set that you selected in Rule Set Manager will be enabled.
Rename Rule Sets
Select this check box if you want the new rule set to take the name of the existing enabled rule set. When the existing enabled rule set is disabled, its original name has an _old1 suffix.