The pilots switch from one tank to another, as plane pilots do.
The pilot could switch between a regular video display, a low-light one, and infrared.
The rain grew heavier and the pilot switched on the wipers.
The pilot switched back to the radio and cut off the intercom.
The pilot switched over to the radio and acknowledged another transmission.
The two pilots switched their oxygen lines on to portable bottles.
At the last moment the pilot switched on his landing lights to find a flat spot.
By that time the pilot had switched off the monitors.
Then the pilot turned, entered another command into the console, and switched the large black lever to the left position.