Are there more scripts then on the resource page?

 From:  Michael Gibson
4715.2 In reply to 4715.1 
There are a few commands that don't have buttons but that you can set up on a keyboard shortcut, they are listed in the command reference section of the help file here:

I think you want the Rebuild command:

Join your 2 curves together and then you can run Rebuild on it to construct a simplified single segment curve out of it.

- Michael