Is it possible to custom nesting rule?

[wakuflair]

It seems that FileNesting is mainly for web project, and I'm wondering if FileNesting supports custom nesting rule, if yes, it would be very useful for other project type.

For example, for a WPF project, it could contains the following files:

MainView.xaml
    MainView.xaml.cs     <-- it's already be nested to MainView.xaml
MainViewModel.cs

FileNesting could nest them to:

Main
    MainView.xaml
        MainView.xaml.cs
    MainViewModel.cs

Is it possible?