QtCreator how do I NOT step into Qt library source?

I'm looking for advice on QtCreator debugging. My OS is Ubuntu 18.04 64bit and QtCreator 4.12.4. Qt version 5.12.4. My issue is that when I run my code in debug mode, the debugger steps into and breaks inside Qt source library code. My question is how do I prevent stopping at breakpoints within Qt source library code because I have no interest in Qt source outside of my linking to the library. I just want to be able to set breakpoints within my own code but QtCreator debug breaks within Qt library source and this is very distracting, making the debugger unusable. Thanks in advance for your advice! Phil