In the 3-D scatter plot it would be nice to have a line connection option similar to what is in the map charts and standard scatter plot. Sometime I have a good number of points that will allow me to see my "line" in 3-D, but often I have a small subset of points, something like beginning, middle and end, and I would still like to see this as a line in the 3-D scatter. If the individual points could be connected in some order, then it would really help to see those that I have fewer points for.