Hien was not at home. Reviewed ductwork and found extended plenums with flex running in each direction. Found only stage 1 wireed to zone panel. Found damper for zone 2 in open position- moved to 0 position to close damper. Inspected to see how we can run a return to first floor. Either need to go through bedroom.closet or master bath closet to first floor. Other bedroom closet will end up in bathroom. Hien was not at home to discuss options.