I have a chart that has 5 expressions. The chart sometimes looks too busy when there are 5 lines displayed at once. I want the ability to select 1 or more expressions to display based on a radio button or a toggle of some sort. A key point is that I want the ability to select as many of the possible expressions to display on the chart without always having to see all 5 of them.
I have included a screen shot below where all 5 expressions are displayed as well as a sample QVW document with some sample data.