Class User.NewClass1 Extends %Persistent
{

/// описание поля  1 
Property NewProperty1 As %String;

/// описание поля  2 
Property NewProperty2 As %String;

}

 s o=##class(%ClassDefinition).%OpenId("User.NewClass1")
 s p=o.Properties
 f i= 1 : 1 :p.Count() w s pr=p.GetAt(i) w !,pr,Name," ",pr.Description

/// This is a description
Property Name As %String;

Note:
The Description keyword is visible only within the Inspector. In a property definition, you specify a value for this keyword as shown in the preceding syntax.