see the knowledge base stats by end user?

see the knowledge base stats by end user?

My Knowledge base is only accessible for registered end-users. 

Whether it's in Zoho Desk directly or in Google Analytics, I'd like to see what each end user is looking at.
Looks like we can't add custom dimension to the Google Analytics integration. 

Ideally I'd love to see the same granularity as the aggregated views, but even if it's just how many page views/articles.