Question Rear window opening A3 hatchback 2 doors


I have an A3 in the garage, the one without air conditioning. At the moment I have not registered it, but it will follow. The idea is that I want to open the rear windows, take them down. I have something on my mind, and I want to roll down those windows. Does anyone know how?? I specify that the car has 2 doors. I loosened the screw from the handle to open it, doesn't come out in the part towards the car pillar. Does anyone have an idea how to do it?