I have worked a kinda long time on this lol. It is a folder simulation. It only works one way: Drag folder 1 into folder 2. Double click folder 2 to open. Folder 1 will be inside. To remove it, hover over it and click the "Click to remove" thing. It will not disapear, but hold space and click the window to close it, and the folder will be back on the desktop. i tried to make it as real as possible, and soon it will have the ability to stack, and all folders will be able to go anywere. Somebody could implement this in Os to if they wanted,.