1.- Make a selection list (list-item-pairs)
2.- use this code in a button
DEF VAR datos AS CHAR.
datos = 'A,1,B,2,C,3,D,4,E,5'. /* Fill your values" */
DO WITH FRAME default-frame.
LST:LIST-ITEM-PAIRS = datos.
LST = '1'.
DISPLAY LST.
END.
The '1' is...