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

In figure 4, Can I simply remove the nut mounting inside the trunk in one go instead of just lossen it and leave it there for removal later?

So, in figure 8, I can skip placing 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.

P.S. This shows for W210, but I think it is essentially the same for most (non-airmatic/non-ABC) Mercedes including W203, W211, W140 and etc, because they are sharing the same rear suspension design.