[Qt-creator] Move dockwidgets in internal Designer

[Matthias Pospiech]

I never keep the dockwidgets in the designer where they are, because 
they take too much space, especially if I work in my laptop.
ui files are loaded into the internal Designer in qt-creator. Is it 
possible to move the dockwidgets inside designer, it seems that this is 
not possible.

If not, how can I configure which program is loaded for ui files? I 
would then like it to open the files with designer.exe

Matthias