Screwballs,
The original query was "How does your company describe circling approaches?
My company doesn't. Our reference is the Boeing FCTM, which only describes how to level off and the configuration from downwind to final, but not how to maneuver to downwind. I revert on the basics what I was taught during my ME/IR.
Just to add, it had never occurred to me that somebody would plot out a magenta route in the FMC for a circling approach, how is this even possible when it is the associated instrument procedure should be in the FMC.