// Get a service used to work with express report
var eaxMdService = expressBox.getService();
// Get express report document
var eaxAnalyzer = expressBox.getSource();
// Get private dimension panel
var items = expressBox.getPropertyBarView().getDimBarMasterView().getItems();
var dimBarPrivateMP = null;
for (var i in items) {
    if (items[i].getTypeName() == "EaxDimBarPrivateMP") {
        dimBarPrivateMP = items[i];
    }
};
if (dimBarPrivateMP != null) {
    // Determine settings of private dimensions
    var metadata = {
        changeSelection: {
            elRelative: "All",
            elSelectOp: "Set",
            setCompound: {
                displayAsCompound: True // Display dimensions as a composite dimension
            }
        },
        compound: {
            displayAsCompound: True,
            isCompound: False
        },
        id: "FACTS_COMPOUND",
        k: dimBarPrivateMP.getData(),
        n: "Facts"
    };
    // Determine arguments of callback function
    var args = new PP.Mb.Ui.PropertyChangedEventArgs({   
        PropertyName: PP.Exp.Ui.ControlType.PrivateDimsDisplayMode,
        Metadata: metadata,
        TypeUpdateData: PP.Exp.Ui.ViewTypeUpdate.PropertyBar
    });
    // Determine callback function
    var onPanelChanged = function (n, t) {        
        var chartView = expressBox.getDataView().getChartView();    
        t ? (chartView.DataChanged.fire(chartView, t.Args), t.Args.fireCallback(n, t)) : chartView.DataChanged.fire(chartView, t);
        // Refresh express report settings panel
        expressBox.getPropertyBarView().refreshAll()
    };
    // Initialize query of private dimensions as composite dimensions
    eaxMbService.setPrivateDimDisplayMode(eaxAnalyzer, metadata, PP.Delegate(this.onPanelChanged, eaxMdService, args));
};