Installed plugin as Alt+G (for example)
Added script to MoiCommand folder.

Select two curves, hit Alt+G.
If two start/end points are, (measured with CustomDistance,) at a distance less than tolerance, a point appears.
If distance is greater than tolerance, no point appears.

Question for Michael:
When selecting a curve with the mouse, is the ability to identify the nearest end to the selection point, (as Blend is able to do for 2 curves,)
available to javascript?

- Brian