Here is sample:


So I would like to do something similar. As You can see there is some QGroupBox with 3 horizontal QLayouts in it. These layouts contains some widgets. And here appears my problem. How to put these layouts inside this groupbox. Setting QGroupBox as a parent doesn't seem to work, because debug functions say that QGroupBox already have a layout. When I do that in a "traditional way" (creating QLayout with QGroupBox as a parent) these widgets don't show in program.
Please help.