Is there a simple way to have a filler flatten an area, without filling the entire area below it up to the line first?
Built a filler to try and make clearing finished quarries easier. Set it to flatten, and instead of removing all the blocks above, then placing blocks at the bottom it proceeds to try and fill the entire quarry area up with blocks.

Now thinking about it I could of had it set to clear, then set it to fill, with a 3D pattern for both. But hoping there is an easier way.