// Get workbook model
var workbook = workbookBox.getSource();
// Get the Data tab on the workbook ribbon
var dataCategory = workbookBox.getRibbonView().getDataCategory();
// Determine callback function
var onRequestMetadata = function (sender, args) {
    console.log("Request metadata...");
    dataCategory.RequestMetadata.fire(dataCategory, args);
};
// Create a dialog for creating a group of rules
var validationSettingsDialog = new PP.TS.Ui.ValidationSettingsDialog({
        /* Set resource key for displaying dialog title*/
        ResourceKey: "TSRibbonValidationSettingsDialog",
        Source: workbook, // Set data source
        RequestMetadata: new PP.Delegate(this.onRequestMetadata, dataCategory)
    });
// Display this dialog
validationSettingsDialog.show();