how to use this tool to set optimistic-lock and use version?

 how to use this tool to set optimistic-lock and use version?

 In the Model properties I can't find where to set this value,thanks!

  In the Entity properties,help me!

Hi maifine,

We don't currently have built-in support for setting optimistic locking, though you can do it through partial classes and customising the generated mapping (see http://www.mindscapehq.com/help/nhdesigner/Help%20Topics/CustomisingGeneration.html).

However,we'd be happy to implement this support for you.  What do you need -- just a way to emit optimistic-lock="none|version|dirty|all" into the mapping, or is there something else you're looking for?

 Thanks vary mach！

 Yesterday,I saw the help document and kind use this way to add the addtional properties to the map file:

 partial class Widget
{
  private static readonly XNamespace MappingXmlns = XNamespace.Get("urn:nhibernate-mapping-2.2");

  static partial void CustomizeMappingDocument(XDocument mappingDocument)
  {
    XElement classElement = mappingDocument.Root.Element(MappingXmlns + "class");
    classElement.SetAttributeValue("optimistic-lock", version)
  }
}

this work well,but sometimes like this property--optimistic-lock is often used to,so my opinion is to let some frequently-used properties can be used like the built-in properties in the design tool.However this tool has been very friendly,it's perfect!