Yes. On pre-1938 stock the blue "Pilot Light" (indicating all doors closed) was in the ceiling of the car in the centre above the door connecting to the next car. On 1938 stock onwards there was one on each of the two panels. The top part of these panels contained "End door cut-out" and "cut-in" buttons for use when the platforms would not accommodate the final set of doors. There were also "guard open" and "guard close" buttons controlling the guard' door. The guard's door was sometimes left open in the summer between stations on surface sections. The bottom row of buttons operated the passenger doors. Two red "open" buttons needed to be pressed simultaneously to open the doors. One black "close" button needed to be pressed to close the doors. There was a red "signal" button which rang a bell in the driver's cab giving him the right away and this was interlocked with the door detectors so that it could not be pressed until all doors were closed (and the "pilot light" came on). This button had a proud metal surround to distinguish it from the others. There was also an intercom to the driver's cab. There was a bar which could be fixed into place to separate the guard's area from the passenger area and the guard had a tip-up seat in the car end. However, at quiet times this was not used, nor was the dividing bar, the guard preferring instead to sit on the more comfortable longitudinal passenger seats. Here's a photo of a 1972 stock guard's panel, annotated as best as I can remember:
View attachment 80058
Now, of course, it's vice-versa.