Lady with the clicker thing..

This is my guess:
She's the supervisor of the elevator operators. She's clicking to tell employees which elevators are available (open and going up) AND/OR tells the operators when they may close the doors because no one else is coming.


"We don't like to use the word 'insane'. We prefer the term 'mentally hilarious'".

She was counting the people as they entered the elevator car. Once a car reached capacity, she signaled the operator to close the doors.

She is a starter, she directs people to the elevators, and when they are full, she clicks to the operator to send them up. Her job is to make sure the lifts don't get too full or congested. The building has 16 elevators, 8 of them are local elevators (for the bottom half of the building) and the other elevators are express (serving the upper floors). Fran works the express elevator.

From the script:
The lobby is an imposing, marbled affair, as befits a
company which last year wrote 9.3 billion dollars worth of
insurance. There are sixteen elevators, eight of them
marked LOCAL - FLOORS 1-18, and opposite them eight marked
EXPRESS - FLOORS 18-37. The starter, a uniformed Valkyrie
wielding a clicker, is directing the flow of traffic into
the various elevators.