I recently switched to a Mac and am trying to get all of my new shortcuts down and I cannot get the command-D functionality to work. I have tried it on index/match formulas and simple arithmetic formulas as well with no luck.
When I have a cell with a formula, I am highlighting that cell and pressing and holding command as I hit the D key. I have also tried repeating this process with several sequential cells within the same column with the same formula with no luck. Lastly, I have tried the same keystrokes while a cell directly under the desired formula cell is selected.
This is stupidly frustrating and I would love any help I can get on this. Thank you!