Every other software that we use has an option to "compose" the forces from an individual set of shell and beams cross section at a specified location using a given effective shell width, for example two that I use:

LARSA has "Compound Element Force" (please see attached pdf).

Midas Civil has "Section Resultant Forces" (please see attached pdf).

In any case, this is another item to add to the "wish list" of enhancements needed to the added to RM Bridge.

Thank you.