[CONNECT .NET] MstnPlatformNet Forms Classes

I want to find how to make my C# AddIn project's WinForm a child of MicroStation's main window.  Is that possible?

While browsing MstnPlatformNet help I came across the Bentley.MstnPlatformNET.WinForms Namespace.  It contains a number of useful-looking classes with little indication of their purpose.  For example, are the following relevant to my first question?

• MicroStationWin32
• Adapter

There are some classes that look like they might be interesting, but I don't see how to use them.  For example, the ItemTypeSelectionForm Class, which is documented with an unpublished source file...

[DialogInformationAttribute(EnglishTitle = "Item Type Selection", Status = DialogInformationStatus.SystemDialog,
	SourceFile = "$Source: mstn/mscore/clr/MicroStation/WinForms/Controls/ItemTypeSelectionForm.cs $")]
public class ItemTypeSelectionForm : Adapter