Pelican Technical Article: Mercedes Benz - Rear Shock and Spring Replacement

I am preparing to do the replacement of shoch absorber this weekend.
Having reviewed the procedure again, I have 2 questions.

Figure 8 states : "Place your floor jack directly under the control arm to support its weight and remove the nut at the top of the shock that you previously loosened. Now remove the rear shock from the car. Now lower the jack and remove the bolt from the bottom of the control arm. "

Is it the typo? Should we lower the jack and remove the bottom bolt before we an remove the the rear shock from the car?

Second question. What's the torque requirement of the nut at the top of the shock absorber?