1. Log in the Journal website -> click on username -> Dashboard -> Submission -> My Assigned

2. Selecting the review link will take you to the first review step. Scroll down, click “Accept Review, Continue to Step #2” to accept review request, then you can find the guidelines for reviewers. You can decline the review invitation by clicking “Decline Review Request”, and it is very helpful if you can suggest alternative referees

3. Click “Continue to Step #3, you can download the submission file, assess the manuscript and enter comments for Authors and Editors

4. Scroll down the page to optionally upload a marked up copy of the review file

5. Select a recommendation, then hit Submit Review/Ok to complete the task

See details as PDF

Or see it as the following Videoclip: