title: Neo4J - Set/Create new label on relationship based on property
body: <p>I'd like to set a different style/color for relationships in my database that have the property "critical".  I assume to do this, I need to update the relationships with a new label called "isCrit" and modify the grass file.</p>
  
  <p>Can anyone help with selecting all relationships with a particular property and create the new label "isCrit"?</p>
  
  <p>Fairly new to neo4j</p>