-# Field 55 = VITESSE_ELEM_DOM (ON_CELLS)
-presentation_id = medcalc.MakeVectorField(accessField(57), viewMode=MEDCALC.VIEW_MODE_REPLACE,
+# Field 55 = VITESSE_ELEM_DOM (ON_CELLS) at timestamp 0
+# Field 65 = VITESSE_ELEM_DOM (ON_CELLS) at timestamp 10
+presentation_id = medcalc.MakeVectorField(accessField(65), viewMode=MEDCALC.VIEW_MODE_REPLACE,