PPoint as a new origin

Hello Forum,

is there a possibilty to move a ppoint(2) by changing the direction angle from another ppoint(1) without loosing the distance between both?

I have an INST with a movable head. At PP(1) i can change the direction with DDANGLE. At PP(2) it would like to make a CTOR ( with another Ppoint at the opposite). so PP(2) need to move with DDANGLE with PP(1) as origin. I hope you can guess my problem.