Qt needs documentation on how to best write scalable QML UI's

The Qt documentation has little information on how to best write UI's for multiple screen resolutions. Specifically

• discussing how to write scalable UI's, handling rotation changes, language changes
• how to switch graphical assets based on the resolution or language
• what to reuse (UI elements) and what to rewrite (navigation paradigms, UI 'entry-point') based on UX specifics