Underneath the "Click and drag..." note on each plot, add a line that says "Click data series name in legend to toggle on/off" or similar language-- feel free to workshop. Pete did not realize that you could turn on/off layers by clicking their name in the legend, so I'm sure other users would not find this intuitive either.
Underneath the "Click and drag..." note on each plot, add a line that says "Click data series name in legend to toggle on/off" or similar language-- feel free to workshop. Pete did not realize that you could turn on/off layers by clicking their name in the legend, so I'm sure other users would not find this intuitive either.