Found 8!
🚂 Eastbound
Green-D train #3910-3901
incoming at None
🚂 Westbound
Green-B train #3922-3918
stopped at Harvard Ave - Westbound
🚂 Westbound
Green-C train #3904-3900
stopped at Copley Station - Outbound
🚂 Westbound
Green-D train #3920-3921
in transit to Kenmore Station - Outbound
🚂 Eastbound
Green-B train #3908-3907
incoming at Boylston Station - Inbound
🚂 Westbound
Green-D train #3919-3905
stopped at Woodland Station - Outbound
🚂 Westbound
Green-D train #3917-3911
stopped at Beaconsfield Station - Outbound
🚂 Westbound
Green-C train #3915-3902
stopped at Saint Mary St - Outbound