The front can be done in seconds, pop the hood and adjust with pliers.
The rear takes about 10min, if you have hydraulic jack pop it under the diff, get the rear of the car high enough so the tires are not touching the ground. You'll get a gap big enough to put your hand in between the tires and the fender. Now you can adjust the konis at the top of the straut. In the photo below I've highlighted in blue the adjustment point. I've already showed you on the cruise what I use to adjust it. By the way, when you put the rear shocks in, you have to make sure that the adjustment point is facing towards the wheel, otherwise you'll not be able to adjust it without removing the shock.