I have a bar chart with split on date with the stacks of size 2063, 2008, 1995, 1990 records. I want to create a trend line over this bar chart to show the downward trend. However, I also have value labels turned on, which appears to be a universal setting for all elements of the chart. Is it possible to keep the value labels for the elemen of the stackbar, but just show the line, and not the values of the points?