One way to highlight activities that are behind schedule on Primavera P6 Gantt Chart
This is the Primvara P6 version of the Microsoft Project tutorial on how highlight activities that are behind schedule when compared against their baseline finish dates. Unlike Microsoft Project, an activity is considered behind schedule in Primavera P6 when its Finish Date Variance less than 0.
You might find this layout useful in a 14-day, 30-day or 90-day lookahead schedule review session.