Object manipulation

Transform objects from static to dynamic, the properties panel will allow you to change the mode of an object, by simply clicking the dynamic check box.
A dynamic object then is capable to move, rotate and scale.

Click the dynamic off to fix the object to the desired position, after this the object will be static unless you need to edit it again.

Note that GI is turned off every time you change the mode, choose pre-calculated light in the global illumination panel to rebuild the solution.