The Editor in chief is able to manage all peer review processes in a journal. To see the peer review process, EIC should click on the "Peer review process" tab under each manuscript page.
The EIC, Associate editor, Reviewer, or Author of an article is able to see the "Peer Review" Comments in a tab under Article Information page. To see, click on "Peer Review Process" Tab, Under each article information. Then you can see all the comments up to the current state using "Peer Review Process" tab.