I am trying to create a page where it shows Items of a particular category. However, I want it to show only the introduction to each item with a link to read the entire item. However, when I create the menu item and I navigate to the page, it shows all the items/articles in their entirety.

How can I change this?

Well then, on to the next Content Extension program for Joomla. Hopefully it will be able to do what I want it to do and hopefully the community members will be a little more helpful.