This great addition to the copy command was introduced within AutoCAD 2012, but i don’t think anyone noticed it. Array within the copy command
Start the copy command and do everything the same BUT prior to picking the second point. Notice the <Array> option hiding in the command line. This is great for stairs, railing or whenever the divide or actual array command is overkill. Don’t forget to see <Fit> option after you pick <Array> within Copy….