A Cable-Stay Bridge model data input can be performed in the Modeler portion of RM Bridge where an bridge specific Geometrical Preprocessor was created.

The main longitudinal reference is the Alignment attached to a structural Axis where the parametric Cross-Section is assigned creating structural Segments according to the Station.

 

The cables input can be done individually, thru Cable series, as in the documented example, or with Cable stayed wizard, as shown below.