How to generate the file rtwtypes.h in the folder model_target_rtw ?

Hello ,

I want to have the generated file rtwtypes.h in the folder model_target_rtw but I don't know which parameter should be updated to ensure that ?

I found that : "Control placement of rtwtypes.h file by selecting whether the build process uses the shared utilities folder. If the model build uses a shared utilities folder, the build process places rtwtypes.h in slprj/target/_sharedutils. Otherwise, the software places rtwtypes.h in model_target_rtw " but I don't understand what shared utilities refers to . How can I know if the model uses a shared utilities folder or not ?

Could you help me please ?