So, I have a QT project with an implemented subclass of QWidget class, which I show on the start and do nothing more. Literally:

int main(int argc, char *argv[])
{

    QApplication a(argc, argv);

    MyClass w;
    
    w.show();
    return a.exec();
}

I want to see, for example, two instances of this widget in my application. I made a small google research and found QGridLayout and QLayout widgets. Naively assuming that I can just add items to them and type myLayout.show() (HTML mindset), and receiving nothing posistive, I gave up and now must ask for the solution here.

Hence the question: what is the appropriate way of handling this situation? How to properly display two or more QWidgets? Ultimately, I’d like my app to look like this:

My Qt version is 6.6.0, if that’s important