The problem with making a tiled material in Poser is, you may need to tile it more or less depending on the item you are applying it to. So you'll end up having to adjust those manually on a per model basis pretty much anyways. It took me a little while to wrap my head around the Advanced Material room, and I'm still learning new things all the time. One good way is to examine other peoples' shaders / texture setups and see what they did to accomplish whatever look the MAT has.

                                                                                                                    

Poser 10

Octane Render

Wings 3D