What are TCM Passengers?
Thermal comfort passengers are defined in the General Settings tab of the thermal comfort wizard.
The TCM passengers are represented with a node by that name in the object tree. Its node is subject to common menu items, and appears when you activate the thermal comfort model.

The TCM Passengers manager contains subnodes for each individual occupant in the vehicle, as defined by the wizard. These subnodes are placeholders for the passenger characteristics, which are displayed in the Properties window.

The managers for each occupant also contain subnodes, which hold information regarding the body segment boundaries, for both solid and air regions.
