The v3.1 update will add the ability to select up to 4 pre-set landing announcements using an additional panel in the style of an airplane transponder of Boeing 727 or Tu-154 (CO-70).
For example, if the transponder remains in the “ГОТОВ” (STBY) position (“A” for B727), then there will sound a default landing announcement suitable for any airport. When the transponder mode selector is switched the announcements will sound according to the mode, which is convenient, for example, for a return flight.
Discussion:
https://www.avsim.su/forum/topic/159508-панель-объявлений-экипажа-harrier-panels/
The update will be available for download soon!.