This is a custom GUI developed in MS Visual Studio C++. It talks serially to an OPTO-22 “Brain” board and samples optically isolated push-buttons which are tapped by cast members. It monitors the location of visitor groups during the Mt. Laurel Living Nativity and helps detect “bunching” of groups and prolonged group “cycle” times. It also generates text log files for later analysis. The raw inputs are also logged and can be “played-back” through the program.