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….