1. With Gantt Filter selected, Filters General tab Filter Tasks By…, activate Schedule.2. Open the Schedule tab below in Filters. This filter contains many options for filtering tasks based on scheduling criteria. For this example, we will leave Critical selected.3. In the Options Gantt Chart Rescheduling Critical Path.4. Here you can define how to calculate the Critical Path. Ensure that Longest Path is selected for this training and select OK to close the Options dialog