Opening a Flow Ruleset 
You must have created the Flow Ruleset in the Rules Composer.
For more information, see Flow Ruleset
For more information, see Creating a Flow Ruleset
In the Rules Navigator view, select the project node.
Under the Flow Rulesets section, select the flow ruleset.
Choose Open.
Note
You can also open the flow ruleset from the Rules Navigator directly.
In the Rules Navigator view, expand the project node and select the flow ruleset.