Pin/UnPin All RadPanes with one click

[Richard]

How do I pin/unpin "ALL panes at once" from the "Pin icon" in the top right corner of the pane? I appreciate any help anyone can provide. 
I need to Pin/UnPin all RadPanes when the pin-button is pressed once on any pane. I've been searching the web, forums, and help tickets for a solution. The zipped solution telerik supplies doesn't work correctly and I see mention of a bug regarding loss of state from last April.  I use a toggle button on a radRibbon to handle all panes:

                    <telerik:RadRibbonToggleButton Name="btnToggleInformationPanes" Text="Toggle Pane" LargeImage="/Drill-IT;component/Resources/Icons/WindowList_64.png" Checked="ToogleInformationPanes_Checked" Unchecked="ToogleInformationPanes_Unchecked" IsAutoSize="True" Size="Large">

        private void ToogleInformationPanes_Checked(object sender, RoutedEventArgs e)
        {
            LeftGroupPane.UnpinAllPanes();
        }

        private void ToogleInformationPanes_Unchecked(object sender, RoutedEventArgs e)
        {
            LeftGroupPane.PinAllPanes();
            LeftGroupPane.SelectedIndex = 0;
        }

But I have been unable to duplicate this action in the Selection changed method. This method gets called multiple times, loses track of the state, and only one pane is pinned/unpinned.

        private void LeftGroupPane_SelectionChanged(object sender, RadSelectionChangedEventArgs e)
        {
            if (btnToggleInformationPanes.IsChecked == true)
            {
                ToogleInformationPanes_Checked(sender, e);
            }
            else
            {
                ToogleInformationPanes_Unchecked(sender, e);
            }
        }

How do I pin/unpin ALL panes with one click from the "Pin icon" in the top right corner of the pane?

Thanks for your help! I appreciate it!!!

[Vladi]

Hello Richard,

As we see that you have posted about the same scenario in another thread, could we continue the discussion there.

Regards,
Vladi
Telerik