New Post: Is it possible to specify that all views in region should be removed when when deactivated on region level in xaml?

Is it possible to specify that all views in region should be removed when when deactivated on region level in xaml?

For example, I need to specify that such behavior should be applied to any view that will be displayed in region. I can implement IRegionMemberLifetime for each view (or view model) and specify

public bool KeepAlive
{
    get
    {
        return false;
    }
}

Is it possible to do same in xaml, i.e. something like

<ContentControl prism:RegionManager.RegionName="{x:Static desktopView:RegionNames.Shell}" prism:RegionManager.KeepAlive ="false"/>