One of our engineers is having difficulty modifying a cable length. He watched several online tutorials in which the video shows you can just click a length dimension in the _MFG file, but every time they attempt to change it, they receive the following dialog message:
"Can not modify length of flattened cable portion."
We're completely green when it comes to cabling and were hoping that this would be a simple modification. Are we just missing something obvious? We're in Creo2.0 M200.