ETABS has a feature called "end offsets" which can be used to model the finite cross sectional dimensions of structural members at beam column junctions. That is even though the analytical model might show a span of say "x" between supports, the clear span would be "x-a". With deep supporting members, say a structural wall in the same plane as a supported beam, the effect of this reduction in span between the analytical and physical model could be quite significant. I was wondering whether Robot had a similar feature?