Monk_knoM 0 Newbie Poster

Is there anyway of chaning the Y-axis on a line chart using the MSchart component. I know i can change the numerical values on it using the chart properties, however I wish to add strings to the Y-axis which relate to numerical values. For example for a datapoint of 50, i would like the Y-axis to display "A" and for 40 to display "B" and so on. I can not seem to find a way to do this, is this even possible?