# Is there a relatively easy way to add the “Cone of Influence” to a waveletscalogram?

I am analyzing time series data using the ContinousWaveletTransform function and plotting the results with WaveletScalogram. I would like to plot the cone of influence on top of the WaveletScalogram plot. Is there a relatively simple and general way to calculate and plot the cone of influence? (note - using the default MexicanHatWavelet)