Hi Bob,
Last question first. The only way I can think of at present, is to make the first pier, shift /select the 3 sides of it and right click Duplicate, then drag it along to the next position. If you set the grid spacing to 1.5 m it will be easy to position or you can watch the Commander bar 'Distance' as you drag. Maybe easier - just move the duplicate a little, then, while still selected, right click and select Move. This will give you the dimension line that will change as you move it.
If you are not overly worried about the 'technicality' of the drawing, you could just use Columns set to the same size and texture. Position one, right click it and select Array, say how many you want and how far apart and it is all done. (see image).
Re the Veneer Walls: No you cannot create this in TFP. I have used the parent program, Envisioneer, which allows customising of the interior configuration of walls, framing etc. (TFP is really only for exterior visualisation so interior configuration of things are irrelevent). If you let me know the interior combination of the 260 and 230 walls also, I will put the three of them in one BIM. They only take a few seconds to do.
Allan