Values between 0 and 99 are possible for each cost factor (cfxxx), but the full range is not useful for all parameters. Sensible values are therefore given with each parameter.
Control parameters (mnxxx) can be from 0 to 9999. Reasonable figures are also provided for each parameter.
Set parameters using Autorouter Setup Menu. The settings for Route and the Optimize passes can be configured separately. The menu is split into three sections: Layer Costs, Costs, and Maximum.