Filling a Graph to y-axis

Hi All,

I have a question about graph filling. I have a plot of wave x vs wave y, which I have plotted as wave y vs wave x. I want to then be able to fill the graph to y-axis, but the only option I can seem to find is filling to x. I know I can plot x vs y, fill to x, and then swap x and y in the modify graph panel, but is there another way to do this? The problem is that there are multiple sets of axes on this plot, and swapping x and y swaps the axes for all of them.

Thanks!