Is there a way to trace an Explicit ray (defined by x, y, z, l, m, n) instead of an Implicit Ray (defined by Hx, Hy, Px, and Py) in the Single Ray Trace Analysis or Merit Function?

I am trying to trace a ray from Surface 1 with (0,0,0) coordinates and direction cosines (0,0,1) through a system with tilted and decentered mirrors making it such that the ray will not pass through the center of the pupil therefore making the implicit method ineffective.