docs: def connect_button(instance, prop, widget):
      """
      Connect a button with a callback method
  
      Parameters
      ----------
      instance : object
          The class instance that the callback method is attached to
      prop : str
          The name of the callback method
      widget : QtWidget
          The Qt widget to connect. This should implement the ``clicked`` method
      """
      widget.clicked.connect(getattr(instance, prop))