Exemplo de uso de caixa de diálogo.

gistfile1.txt

var title = "<div class='widget-header'><h4><i class='glyphicon glyphicon-registration-mark'></i> Incluindo Novo Registro</h4></div>";

var dialogViewModel = new DialogViewModel();
dialogViewModel.set("resizable", false);
dialogViewModel.set("view", NewDataEntryView);
dialogViewModel.set("title", title);
dialogViewModel.addButton({
    html: "<i class='glyphicon glyphicon-floppy-saved'></i>&nbsp; Salvar",
    css: "btn btn-success",
    functionName: "save"
});
dialogViewModel.addButton({
    html: "<i class='fa fa-times'></i>&nbsp; Cancelar",
    css: "btn btn-danger",
    functionName: "close"
});

shell.showDialog(dialogViewModel);