internal void AddNewTimer()
        {
            var availableTimers =
                timerDefinitions.GetDefinitionsOfUnusedTimers(activeTimerDefinitions.Select(timer => timer.DefinitionId));

            TimersChoiceForm ui = new TimersChoiceForm(availableTimers, timersFeature.GetModuleUi());

            if (ui.ShowDialogCenteredOnForm(timersFeature.GetModuleUi()) == System.Windows.Forms.DialogResult.OK)
            {
                foreach (var definition in ui.Result)
                {
                    try
                    {
                        AddNewTimer(definition);
                    }
                    catch (Exception exception)
                    {
                        logger.Error(exception, "Error at InitTimers for timer " + definition);
                    }
                }
            }
        }