Model grid/Bathymetry question/wish

I am not sure if it can be applicable, or worth it, regarding the numerical scheme of the model (2-D, laterally averaged) but here is my wish: - Adjusting the layer widths and the segment orientation in the model grid, representative bathymetries of the water bodies/branches modeled are created, with the main assumption of the thalweg being the centerline crossing the every segment. In future versions, could any desired segment(s) be shifted up or down in the axis normal to the centerline/flow direction (with the different, defined amounts for each layer) so that we could create more representative cross sections, thus bathymetries without refining the segment and layer sizes further?