on Terminal.app
defaults write com.apple.dock persistent-others -array-add '{ "tile-data" = { "list-type" = 1; }; "tile-type" = "recents-tile"; }'
killall Dock
not need additional CPU and memory.
Can't get to the developers web site for some reason firefox and safari can't find it when i click Atalantia in the upper right hand corner of this web page.