Hi Burr, that kind of sounds like the Import point file command that Petr made:

http://kyticka.webzdarma.cz/3d/moi/#ImportPointFile

I think that lets you build either a polyline, control point curve, or interpolated curve from the points read in. But I think it uses the points in the sequence they are found in the file and won't try to organize a big random set of them.

- Michael