Easily adding methods to the current class

To answer your second question, it is by design at this point, although rest assured we will definitely revisit it in our next release.
As for the first question, well it's not quite as easy as I'd hoped. We do not expose that function, which essentially launches a wizard with some parameters, so you cannot assign it a shortcut. On the other hand, you could try creating a macro to mimic this behavior, which I have been trying to do for a couple days. The fact is, there are 2 macro-based choices, neither of which is particularly elegant.
1. Get the current class using CodeModel, and call the AddFunction method on it. However, this will not bring up a wizard, so you'd have to pop up a custom little form with the text inputs and use that as arguments to the AddFunction call. If you wish to go this way, I am totally willing to help out.
2. Call our wizard via a macro. In order to get to it, you need to access the vsWizard COM type library. This means you need to create a utility class, add the COM library as a refererence and then call the Execute (or RunWizard, can't remember) command. Sounds easy right? The problem is figuring out the arguments to pass to that function is virtually impossible, even for us (I'd have to debug into the IDE at the moment you click on that class view context menu item and seee what it's passing).
I'm sorry this is the state it's in and I've noted this as something we should revisit in our next release.

I'll post an example for you very soon.

Sorry for the delay!

I didn't have time to craft a fully functional example, but at least I can show you the macro part of it, as I am sure you can build a little form easily. You should also be able to find some tips on these aspects of macros at http://msdn2.microsoft.com/library/tz746te4(en-us,vs.80).aspx

Sub AddMethod(ByVal classElement As VCCodeClass, ByVal methodName As String, ByVal type As String)

Dim vcCM As VCCodeModel = DTE.ActiveDocument.ProjectItem.ContainingProject.CodeModel

If (vcCM.ValidateMember(methodName, vsCMElement.vsCMElementFunction, type)) Then

classElement.AddFunction(methodName, vsCMFunction.vsCMFunctionFunction, type)

End If

End Sub