DefaultKeyBinding.dict

// https://github.com/ttscoff/KeyBindings/blob/master/cheatset_keybindings.rb#L147-L149

{
  // copy paragraph
  "~y" = (setMark:, moveToBeginningOfParagraph:, moveToEndOfParagraphAndModifySelection:, copy:, swapWithMark:);

  // paste paragraph below
  "~p" = (moveToEndOfParagraph:,moveRight:,insertNewline:,moveLeft:, paste:);

  // duplicate paragraph, opt + shift + down
  "~$\UF701" = (setMark:, moveToBeginningOfParagraph:, moveToEndOfParagraphAndModifySelection:, copy:, swapWithMark:, moveToEndOfParagraph:,moveRight:,insertNewline:,moveLeft:, paste:);

  // delete line/paragraph, opt + shift + k
  "~K" = (selectParagraph:, delete:, moveToBeginningOfParagraph:);

  // Move line up
  "~\UF700" = (selectParagraph:, setMark:, deleteToMark:, moveLeft:, moveToBeginningOfParagraph:, yank:, moveLeft:, selectToMark:, moveLeft:);

  // Move line down
  "~\UF701" = (selectParagraph:, setMark:, deleteToMark:, moveToEndOfParagraph:, moveRight:, setMark:, yank:, moveLeft:, selectToMark:);
}