When you are editing a Rulesheet, the Properties tab's Rulesheet displays the Rule Vocabulary that supports this Rulesheet.
Note: A Rulesheet is tightly bound to its Vocabulary. While you are allowed to browse to select another Vocabulary, that action is a reserved for advanced users who might be applying an updated version of the same Vocabulary, perhaps as carefully changed by a project collaborator.
Comments
You can add text comments to a Rulesheet to describe it, such as its purpose, change history, or contact information.