This module, also known as Sum of Absolute Difference (SAD), is used to re-synchronize traces as in the case of signals with time jitter.
See [[Sum of Absolute Difference (SAD) Pre-Processing]]
The easiest way to detect the presence of jitter is by zooming in the plot to check if they are not aligned (you may need to select about 8 or more traces to be plotted simultaneously in the "Trace Output Plot" settings in order to visualize it):