-- hotkeys operating on the cursor pane

  -- hotkeys operating on the cursor pane -- only if change would be visible
  -- on screen

  if pane.show_cursor then
    -- TODO: return if cursor is not visible on screen
  else
    -- return if no part of cursor pane is visible
    local left_sx = left_edge_sx(Cursor_pane.col)
    if not overlap(left_sx, left_sx+Display_settings.column_width, Display_settings.x, Display_settings.x+App.screen.width) then
      return
    end
    local up_sy = up_edge_sy(Cursor_pane.col, Cursor_pane.row)
    if not overlap(up_sy, up_sy+Cache[pane.id].height, Display_settings.y, Display_settings.y+App.screen.height) then
      return
    end
  end