This article will help to see how the App is being used on your instance.
Usage of our MultiExcerpt app is a little hard to pin down as it goes hand in hand with page views. So for example, if you have a MultiExcerpt Include on a page then the usage of the App would correspond with however many times the page has been viewed.
Additonaly how many times a MultiExcerpt has been connected with a MultiExcerpt Include
You can check on how widespread the macros within your instance are applied via the Atlassian Marco Usage feature. There are several different macros included with our App. You may not be using all of them.