Description of Custom Dimensions in WordPress Google Analytics plugin.
As the default dimensions provided by Google Analytics, there can also be Custom Dimensions, which you can configure yourself. They can be handy when you want to analyze specific data, which Google Analytics does not track automatically.
Google Analytics WD plugin provides six options for your WordPress sites, that can be used for creating Custom Dimensions.
For example, when you enable Logged in custom dimension, you can get tracking report particularly based on users, who are logged in to your website.
Furthermore, you can see the traffic of your website posts based on Post Types, Authors, Categories, Published at and Tags.
Using these custom dimensions you can check which one of your post authors is the favorite of your website visitors, for instance, or which category posts are read the most.