It would be helpful to explicitly set the upper and lower
boundary for the values that appear on the chart. For
example, if my data series values range from 10 to 100, I
still might want my Y axis to go from 0 to 200. The only
way to do this now (that I've figured out) is to put in
extra values/labels for the min and max values...but this
of course takes up room on the chart.