[mdl/V8i] How to prevent a model change from the View Groups toolbar

Hi,

I want to prevent the user from changing model and I can't find a way to prevent the change made from the View Groups toolbar.

The other ways, such as menu, can be prevented by returning INPUT_COMMAND_REJECT from the INPUT_COMMAND_FILTER callback.

But this callback isn't done, as far as I can see, if the model is changed from the toolbar.

Does anyone know how to prevent the model change in this specific case?

Thanks
Christian