You must DESELECT the ILS you do not wish to use. To do this you must be in the MAP mode, push the ALT key and the letter J at the same time. Place the + over the orange dot on the ILS antenna to deselect and LEFT click. To cancel or return to normal operation, press the ALT key and the letter J again at the same time, place the + over the shaded dot on the ILS antenna and LEFT click.
Please view the PDF below for more information: