问题 Using PyQt5, I'm trying to build a GUI part that displays two parts; one gives an overview in a QTableView (class Overview), the other shows details of the selected item of the overview in a QTabWidget (class DetailledView). Now, the data in the QTabWidget is spread over several tabs, showing data from different tables (it's much more complex than in the minimal example below). Since these behave like key:value pairs, I want to display them vertically instead of horizontally. So I have an