QCustomPlot Widget not scalable [SOLVED]

  • Hey Guys

    I am trying to scale the QCustomPlot Widget, but it is not possible.
    I have a MainWindow, under it a central Widget and then added a Widget from the Widgetbox.
    But this Widget has the size of the mainwindow and I can't scale it. In the property window the geometry settings are also grey.
    If I promote it to QCustomPlot Widget I can't scale it either.
    Has it to do with a little red circle before the widgetname in the object inspector?
    How can I scale it?

  • Yeah I solved it.
    It had something to do with the break layout button in the designer mode.