When an area of the screen is selected with mouse or keyboard, this is called "the selection". If this option is selected, only text selections are stored in the history, while images and other selections are not.
A área da pantalla escollida co rato ou o teclado chámase « a escolla ». Se escolle esta opción, só se gardarán as escollas de texto no historial, as imaxes e outras escollas non se gardarán.