Separate debugger visualizer tool window for different variables of the same type

[Aleksey1555]

Hello.
How to create separate Debugger Visualizer window for different variables of the same type?
I create VisualStudio.Extensibiliy Extension with VSSDK Compatibility project.
I create class which inherits from DebuggerVisualizerProvider.
In method CreateVisualizerAsync i receive data and write this code:

await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
var muc = new MainUserControl(); // My UserControl
var wrap = new WpfControlWrapper(muc);
return await Task.FromResult<IRemoteUserControl>(wrap);

And everything fine, but when i make debug of my program and click 'View' i get same tool window for different variables of same type.
How to make many tool windows for each variable?