How to change from SM5 to SM4 for PC packaging?

Hey guys,
I’m currently working on college project, and I need some instructions.
While packaging project it automatically sets Shader Model 5. Can it be changed to Shader Model 4?

I need quick answer
Cheers

thanks for quick response

Go to edit/project settings/platforms/windows/Targeted RHis, uncheck DX11, and make sure DX10 is checked.