I am designing a 23 story flat plate structure with concrete shear wall. I developed the mode in Revit 2013 and imported to Robot 2013. I completed the building analysis but I am having problems designing the columns. When I process the concrete column module, I get an " out of limits " error. When I view the column it shows an unbraced length of 233 ft. It was my understanding that when the Revit mode is imported to Robot that it divides the columns in accordance with the levels shown in the Robot model. Can anyone help me with this issue?