Yes, you can.
You have to place a Ghost Brick down, then enter "Admin Fly Mode". You can't point-and-click to move the Ghost Brick though, you have to use the NumPad. The NumPad controls will move the brick corresponding with the direction your player was facing before you entered "Admin Fly Mode".
Say if your Blockhead was facing North you enter "Admin Fly Mode" and you are facing your Blockhead's back and press 8 (Forward - Default) the brick will move North. But if you are facing your Blockhead (You can see his face) and you press 8, it won't move towards him, it will still move North.