Watch the video. The script can select edges with desired length, can measure distance between verts, middle point of edges, objects. Editable POly, Editable mesh, Edit Poly and Spline objects are supported. But I don't know what name to use for this script.
Any suggestions?
[ame]
http://www.youtube.com/watch?v=AKmOJbgxsHg[/ame]