Configuring the FlexiContent plugin
You can configure Content Statistics module working with FlexiContent to display data only for a certain type of items (articles, for example)
In the field "Extra filters", you need to specify what type of FlexiContent items you want to display data for. FlexiContent content has a "type" associated to them.
How to know what is the "type_id" of my FlexiContent content?
If you don't know it, the easiest way to find out is looking into your Type page, on FlexiContent backend. See the next image to know what's the ID of a particular item type:
Finally you just need to input this information in the module parameters. If your type is "2", for example, you will input type_id=2 in the Extra Filters field, like in the screenshot below: