I wanted to start using the fabrication parts for cable tray in Revit.  I began to build some Husky Ladder tray.  I ran into a rather big snag.  The pattern for the horizontal cross only allows for a single size width for the tray.  The catalog has horizontal cross cable tray that calls for reducing crosses similar to the Ts.  The T pattern has allowances for 2 separate widths, but the cross does not.  Is there a way to add the separate dimension width to the cross pattern as it is in the T?  I am rather new to ITM parts, but I would really hate not to be able to use the fabrication parts as they seem to be working well, but if I am unable to use a main part like this then I will have to continue to use the ootb cable tray in Revit.