Left Panels

L1 Panel - Thermal System controls (Flash Evaps, Radiator bypass, coolant pumps etc).

L2 Panel - Cabin atmosphere controls (Cabin Vents, N2/O2 system valves). derorb and landing controls (NWS, De-orb Mode, trim).

L9 Panel - MS Comm panel.

L11 Panel - COMM interface unit & COMM AUX controls.

L12 Panel - Mission Customizable Panel, usually for Deploying Satellites.