Depending on your application needs another option is to keep the UI in Python while calling all the UE functions you need through that. I am currently playing with this in Pyside6. Of course this might not be the route you want if you prefer to dock-able windows and more Editor button functionality that isn’t all Python related. Mine is a bit the opposite, where I have a lot of outside interaction of Unreal with my other Python Apps, so using a Python GUI makes a bit more sense for me.