Creating a Bridging Header

I am creating a Bridging Header manually since it doesn't let me do it automatically. I created the a header file called "AppName-Bridging-Header.h. The problem is that I can not set it as the project’s Bridging header, which can be normally done through the project’s build settings. I do not have the Objective-C Bridging file section under Swift Compiler -Code generation. I only have Optimization level. Thank you.