Legend as a filter of the graphic itself

I would love to use the legend of a graphic as a filter for the graphic itself. For example when I've got a line chart with a legend and some lines have got much bigger values than the others, I hardly can see the other lines. So I prefered to click on the legend to select the shown lines so, that the y axis changes automatically and I can compare the lower valued lines. At the moment I only can use the legend to filter other graphics but I would like to decide what happens with the graphic itself.