For the life of me, I cannot remember what this is called, or where to find it in the menus. It doesn't have the word "duplicate" in it, but it should! You select an object and then go to a dialog box and set up how many times you want to duplicate it vertically or horizontally, and how far apart.
I will certainly write this command down when the answer comes through, but I can tell you it needs a name that sounds like what it is!
Thanks!
