In the BOSS RMS manual in chapter 3, page 3-3 the
manual states, "HEC RAS provides additional
capabilities, including and alternate sub-area
conveyance computational methodology and an
automatic Manning roughness calibration routine"
but I have not been able to find anything else about
this routine in the manual.

Could you tell me where I could find this in the
manual or whether or not BOSS RMS contains this
routine in the current version.