Problem about learning Audacity 4

Hello, I am learning Qt development and would like to use AU4, which is currently under development, as a learning project. I found that AU4 cannot change the UI by dragging controls through the visual editing interface (design) in Qt Creator. Therefore, I am wondering if it is feasible to migrate the project code to another project created by Qt Designer (which has a visual interface and can edit the UI interface by dragging controls). If feasible, what should I do?

Audacity 4 is very poorly suited as a learning project as we use tons of custom elements, some of which were brought over from MuseScore studio. I’d recommend trying to build a UI from scratch yourself - after managing all of the dependencies, I got a blinking square going within an hour or so. You’d also have the benefit of being able to follow tutorials doing that.