Help Make rope more stiff

[3DJames]

I'm new to Obirope, so I'm just learning. I'm trying to make the rope stiffer, like a cable, but can't get it to work. I thought the Shape Matching Constraints would do it, but I don't see the options in the help file though. I just see Iterations and Relaxation. I tried adjusting these values but it didn't appear to do anything. 

How can I make it so the rope is stiffer?