First of all, go to Zones -> Counting:


Add 2 different zones, one for Counting and another for Walkby. Name the walkby zone as walkby

Draw the pass line for walkby as a slanted line instead of straight line



Go to Calibration and enable Couples Counting


Go to Settings -> Tracking and make the following changes:


Basic -> Height Filter - 60

Segmentation -> Min Height - 50

Tracking -> Min Height to track - 60

Tracking -> Min Object Mass - 150