Don't hold your breath.
As far as I know, "Print" prints the visible image, which is what people want in 99% of the case. If it were possible to print either the image or distinct layers, there would be an option for that somewhere. Pages are pages, and not layers. If this were a setting for layers, it would be labelled Layers. Notice also that there is nowhere any notion and display of layer numbers in Gimp so what layers 3-5 would be is anyone's guess, especially where there are invisible layers or layer groups.
I cannot find the Two-sided string in the Gimp source code, and any explanation of these print options in the Gimp documentation so I suspect that this tab is just a standard GTK print dialog (the first tab of Gimp's print dialog looks pretty close to the one here), and that there are options in it that Gimp won't use.
As far as I know, "Print" prints the visible image, which is what people want in 99% of the case. If it were possible to print either the image or distinct layers, there would be an option for that somewhere. Pages are pages, and not layers. If this were a setting for layers, it would be labelled Layers. Notice also that there is nowhere any notion and display of layer numbers in Gimp so what layers 3-5 would be is anyone's guess, especially where there are invisible layers or layer groups.
I cannot find the Two-sided string in the Gimp source code, and any explanation of these print options in the Gimp documentation so I suspect that this tab is just a standard GTK print dialog (the first tab of Gimp's print dialog looks pretty close to the one here), and that there are options in it that Gimp won't use.