... .1 Customer information & contents specified;2.2 Scrolling direction & floor message:3. Displaying methodes: 3.1 Information ... With effective input of Encode A – Encode E;3.3 Direction display: effective input of UP or DN; ... two buttons,displaying contents includes(B,G,M,F,L,E,0,1,2,3,4,5,6, ... incremental button to select among(B,G,M,F,L,E,0,1,2,3,4,5,6, ... button to select among(B,G,M,F,L,E,0,1,2,3,4,5,6, ...