Data type replacement for complex data types

Hi All,

Does anyone know how to do data type replacement on complex data types? Obviously it's not possible through Configuration Parameters window but I was wondering if there is a command line way of doing this.

I have my complex number defined as a bus in the workspace and would like simulink to use it when generating code so that it doesn't use creal32 as I already have complex float defined in my software project.

Many thanks