To return to the original question.

Quote - Is there a way to apply the pose without it being sent back to zero? Thanks for your help.

If the figure is moving because the pose contains translation data for the BODY, you can just lock the BODY before applying the pose, then unlock it after the pose has been applied. A pose does not get applied to a locked actor.

If it is translation data for the hip that is causing the problem, then there is no quick fix. You can't use the lock actor trick on the hip because most poses need to rotate or yTran the hip to give the desired effect.

If the problem is with the hip translations, then the best solution is probably to edit the pz2 file. If there is a BODY actor in the pz2, remove it. With the hip actor, you can either remove the x and z translation channels from it, so that the pose has no effect at all on those translations, or set those translations to zero, which is the normal way to do it.