The Messaging tab allows you to find the default input filter as well as the very flexible Properties section. 

Input Filter(s)

• Inherited Filter: Displays the client level default or the filter that will be used, if nothing is specified in the Input Filter field.
• Input Filter: Displays the service level default which supersedes the inherited or client-level Input Filter default.
• Contact Flow Results Rule Set: Displays the Rule Set associated with the given Contact Flow of the given message that is assigned to the service.

Properties

• Lookup Properties: Displays the Property(s) window, which enables you to search for a property and the associated service.
  
  
  
• Add Property: Displays the Add Property window. Select the property name from the drop-down list, and then add a value for the property. Click Ok to add the property and Cancel to discard the changes.
• Delete Property: Enables you to delete a property. To delete a property, select the property, and then click Delete Property.