ADMIN_METHOD_PROPERTY_MANAGE ADMIN Endpoint
  /rpc/admin/?method=ADMIN_METHOD_PROPERTY_MANAGE  
  Only available for Super Users  
  PARAMETERS TYPE NOTES
  DataReturn Text A comma delimited list of advanced search fields to be returned after a successful save
  Id Numeric  
  Remove Numeric Pass '1' to remove the item
       
  AdminMethod Numeric Mandatory. As per CORE_METHOD_SEARCH
  DataLength Numeric  
  DataType Numeric 1 = Numeric, 2 = Date, 3 = Text [default]
  Mandatory Text (1) Y / N [default]
  Name Text (100) Mandatory. Value to be used when doing the Manage or Search
  Notes Text (2000)  
  SearchEndPoint Text (100)  
  SearchMethod Text (100)  
  SearchRelatedProperty Text (100)  
  Title Text (100) Mandatory. Value to be shown to a User
  RETURN  
  id