I think it is best to do these tutorials based on solving realistic coding challenges.
In helping to write the code for the next MATLAB contest, I had a situation where I wanted two images to be displayed on two axes using the same colormap values. The problem is, one image ranged in value from 1-100 while the other would range from 1-10. Just like you might change the xlim (x limits) of two axis so they match up, I also needed to set the color limits on these two axis so they would match up. I could do that manually, or, I could do it with LINKPROP. This video uses the LINKPROP method.
Also, be sure to take some time to explore the new look of the File Exchange. Lots of new features.