Mappable foot controller for microsurgical system

Control microsurgical system (10) comprising: a computer (70); a foot controller (26) operatively coupled to said computer, said foot controller a plurality of switches (56a, 56b, 58a, 58b, 60, 62) disposed therein for controlling each of said switches a surgical function said microsurgical system and being activated by a user's foot; a display touch screen (100, 16) operatively coupled to said computer, said display screen capability: displaying a graphical representation (26a) of said controller including said plurality of switches; and display a list of surgical functions (114, 116, 117, 118, 120, 121), said list being associated with said graphical representation of one of said plurality of switches; where touching one of said surgical functions in the list, a user can exchange said surgical functions associated with any two of said plurality of commands of the foot controller.