Windows, Creator2.6.1

I usually watch outputs from qDebug() at Application Output and the text is in pink. Sometimes there comes information in black. I know who made them, but have no idea how they are implemented(OutputDebugString?). Some are output by thirdparty modules and some come from command line outputs run by QProcess.

The problem is that some of them gives nonstop outputs and hide the output made by myself. So is there a way to block them? I don't want to close the Creator and use debugview to filter them, keeping closing and opening the projects will drive me crazy.

Thanks!