improvement request for the editor shortcuts.

I like the Qt creator, it's beautiful and support C++ well, including watch the contents of container when debugging while eclipse CDT can't. Then I decide to transfer to Qt Creator, but there's some deficiency on Qt Creator's editor. It lacks of many useful shortcuts, while eclipse does well on this. Useful shortcuts including:
1, "shift-enter" : Adds a new line below the current line, "ctrl+shift-enter" :reverse direction.
2, "ctrl+alt+down": Duplicates the selected lines and leaves the selection unchanged, "ctrl+alt+up", reverse.
3, "alt+down": Moves the selected lines down, "alt+up" reverse.
So, If Qt Creator improve the shortcuts functionality, it will be more appealing.