qmake with QtCreator in Mac OS X

Hello. I installed latest Qt libraries and QtCreator separately on mac os. The problem is qtcreator can't see where qmake is. I know it is in /usr/bin directory. But since usr directory is hidden i can't add qmake to qt versions section on qtcreator's build and run option. Even if i make hidden files and directories visible however qtcreator still can't see hidden directories. So how can i add qmake to qtcreator?

I'm a beginner too. And I copy /usr/bin/qmake to my directory and let Qt Creater find it.
It may be a solution.