Important suggestions and bug

First of all I come from China.
I have several problems in the process of using Qt you have not been resolved.

1)Qt Creator in some places there is no complete translation, there are still some places in English.
2)I am using the latest version of Qt5.7, but this version does not support the transaction of the MySQL5.7.12 database.
3)When I re implementation of a class, for example: to realize QPushButton, Qt does not automatically add "#include <QPushButton>","Q_OBJECT","explicit".
4)When I re implement an event, such as: closeEvent(), Qt does not automatically fill the parameters for this event.
5)When using QMessageBox:: warning () function, the pop-up warning dialog box does not prompt the sound.
6)Qt5.7 help documentation is ugly, I love Qt5.5 help document, because it is more beautiful.

I hope you can solve the above problems, but you must give me a reply, thank you!
My email: 1363386323@qq.com