BRLCAD 7.42.0 NIRT Issues

NIRT is working as currently intended, though I need to run an old code that uses NIRT to determine if the ray hits any region from a particular point forward. Because the -b option has been deprecated and NIRT always interrogates the whole model, the script is failing to do what it needs to do. Is there an option to run NIRT the old way (into the screen from a discreet point)?