The control-structures of Elan are the choice, repetition and display.
(315,080) (000,070)composed-unit, control-structure (000,050)(1,0)030080choice (1,0)030 (025,040)(20,20)[lb] (025,030)(1,0)005080repetition (1,0)005 (115,040)(20,20)[rb] (025,020)(20,20)[lb] (025,010)(1,0)005080display (1,0)005 (115,020)(20,20)[rb] (005,040)(20,20)[rt] (015,040)(0,-1)020 (125,020)(0,1)020 (135,040)(20,20)[lt]