FENIX A320 TERR ON ND Button

It seems that the functions for the ND ON TERR button FNX_MPNL_ND_TERRONND_1 contained in the file actions.lua only switches the light in the button on and off, but does not display the TERR image on the ND.
Better seems to be the function shown below, where the TERR ON ND button on the Captain's side is briefly pressed and released. This turns on the light in the button and displays the TERR image on the ND.
Regards
Stefan Liebe

-- $$ Terr on ND

function FNX_MPNL_ND_TERRONND_CAPT_push()
    Lvar = "L:S_MIP_GPWS_TERRAIN_ON_ND_CAPT"
          ipc.writeLvar(Lvar, 1)
          DspShow('TERR','push')
 end

function FNX_MPNL_ND_TERRONND_CAPT_release()
    Lvar = "L:S_MIP_GPWS_TERRAIN_ON_ND_CAPT"
            ipc.writeLvar(Lvar, 2)
        DspShow('TERR','release')
end

function FNX_MPNL_ND_TERRONND_CAPT_button()
    Lvar = "L:S_MIP_GPWS_TERRAIN_ON_ND_CAPT"

        FNX_MPNL_ND_TERRONND_CAPT_push()

        FNX_MPNL_ND_TERRONND_CAPT_release()

end