Nex coilovers...confused...I need help height adjusting please

[TurboDreamzGST]

So I'm about to install my nex coilovers and I'm a little confused with the adjustments. There are two nuts that sit right below the spring and than a third nut that sits the lowest and sits right against the bottom coilover body. From what I understand, the top two nuts are used to adjust the tension on the spring but not the ride hide. I was also told that in order to adjust ride height I would have to loosen the lowest nut that sits on the lower coilover body and than spin the entire lower portion of the coilover. This is true because when I do that the coilover gets longer and shorter but in order for me to adjust the ride height once they are on the vehicle this would mean I'd have to remove the lower mounting bolt to spin the entire coilover to raise or lower the car which seems a little ridiculous. Am I wrong or is there another way to adjust ride height once they are on the vehicle. I have the NEX GT coilover kit and they will be going on a 98 eclipse gst.

Anyone? In trying to install them this weekend and really need to know before installing them and I can't did any info anywhere.