Here's something you might try. Load a cone primitive into Poser in the same position as your light. Use the "tip" of the cone to point in the same direction as the light, pointing the tip towards the target.

If the other application won't let you import your lights, you can export the cones primitives with your scene and load your new lights into the same position as the cone and align them to direction of the cone "tip".

In other words, use the cone as a place holder for the position and angle of the lights. You could also do the same with a cone for the camera.