Display the # of related entities in the Includes/Included view

When you're having >50 relationships of a given type, there is that "show all" button that indicates the total number of relationships:

Once you've expanded to see "all", the number disappears. For me it comes in handy to have that number at hand at all times.

Suggestion: add the number (63 in this example) like this: (63) between the relationship name and the icon for the context menu.