No, I guess I'm not confusing this with hinge axis:
pXent_setangvelocity ( entity, VECTOR* speed ); When I use first vector (which should be PAN) entity changes it's ROLL parameter, but if I use last one, then entity changes it's PAN.
And, any ideas about combining dynamic lights from "ent_nextlight" and static ones from trace? Just poke me in a right direction.