Yeah, we are using it in a similar fashion, but without setting the winId
However, didn’t find a good way of docking.
There are many reasons why you would wan’t to use pyqt in unreal. For instance, if you already have a tool that is written in pyqt and wan’t to integrate it into unreal. Furthermore, there is not a lot of information about custom UI’s about Unreal, I wouldn’t know how to replicate a full-blown pyqt interface like treeviews/tabs/modifiers.