Code Review
Code review feature is integrated into "DevOps" in ZenTao Biz series. Click here to learn more about code repository creating, diff, and synchronizing with GIT.
Go to "DevOps" -- "Review". When you view the code, a plus sign will appear on the left side of the code when you hover over it, click the plus sign to create a review.
Once a review is created, there will be a reminder at the code, which can be clicked to view the details.
You can also view it in "DevOps" - "Review" or in the corresponding product "Bug" list.