anchor.diff:  
   Kill Bill has two types of tags:
   
  -* *Control tags*&#8212;Also referred to as _system tags_, these tags modify the behavior of the system. In Kaui, you can view and attach these tags, but you cannot add, change, or delete the underlying <<Add Tag Definition, tag definition>>. Kill Bill includes several control tags; see the API documentation for https://killbill.github.io/slate/#tag[a list].
  +* *Control tags*&#8212;Also referred to as _system tags_, these tags modify the behavior of the system. Kill Bill includes several control tags; see the API documentation for https://killbill.github.io/slate/#tag[a list].
   
  -* *User tags*&#8212;These tags are not interpreted by Kill Bill; they are a way for admins or third-party systems to annotate specific existing resources. For instance, the support team could tag account resources associated with a specific customer to group them. In Kaui, you can create and delete user tags on the <<Add Tag Definition, Tag Definition page>>.
  +* *User tags*&#8212;These tags are not interpreted by Kill Bill; they are a way for admins or third-party systems to annotate specific existing resources. For instance, the support team could tag account resources associated with a specific customer to group them.
   
   [NOTE]
   *Note:* Kill Bill does not include default user tags.
  
positive.code: 
  ==== About Tag Definitions
  
  A tag is based on a _tag definition_. As its name implies, a _tag definition_ defines information about a specific tag. In Kaui, you must create a tag definition for a user tag before you can attach it to an account or invoice.
  
  === Additional Tag Resources
  
  
negative.code: 
  === Add a Tag Definition
  
  You can create and delete tag definitions for user tags on the <<Add Tag Definition, Tag Definition page>>. To create a new tag definition:
  
  . Open the Tag Definitions page as explain in "<<View All Tags>>".
  +
  