There was a post a long, long tiome ago on the forums about grabbing and moving game world objects by clicking/holding the mouse but I’ll be darned if any search terms I use can find it. Any of the old timers here remember it? Many thanks.
One of the example builds has that. The one with the little balls and electric bolts. Sorry I can’t be more specific.
not sure but this one maybe?
http://forum.unity3d.com/viewtopic.php?t=1378&highlight=grab