How to control/customize the initialize function generation from simulink model?

Hello,

I am generating the C codes form the simulink models using the Embedded Coder target. I want to know that, is there any way to control the model_initialize and model_step function generation. I founf that the code mapping Editor useful controlling the names and arguments of the mentioned functions.

Requirement :

Instaed of generating the two individual functions, the single function step/init function with all the code compressed in it.

Please help me with the possible ways of acheiving it.

Thanks in advance.