By grabbing and gragging a "+" at the bottom right of the selected ranges of cells, I can extend the range, copying values or formulas.
How do I do similar action, but without dragging mouse cursor all the way to large row or column number? I want to type resulting range from keyboard.
There are "fill down" (Ctrl+D) or "fill right" (Ctrl+R) things, but they implicitly calculate resulting range. I expect a pop up (like in "Go to range" action) where I can type the specific range to fill (not just duplicate, but use auto-increment, suggested fills and so on).