How can co-authors check the status of a submitted manuscript in Elsevier Editorial System? I know that after submitting a paper through Elsevier Editorial System, the corresponding author can check the status of the submitted paper online. But how about co-authors? Can the corresponding author give a permission to the co-authors to enable them to check the status of the paper as well? If yes, how that can be done?
The answer is No, he/she cannot cannot give any permission to the co-authors after submission to EES and before acceptance, as mentioned here:


  I am a co-author on the paper, I would like to be able to see the
  status of the manuscript. I have the manuscript number and I am
  registered on the journal website.  
  
  After submission, you can only see the status of a submitted paper via
  the corresponding author's EES homepage. You will not be able to
  search for this submission via your own author's EES homepage.


So just the corresponding author can check the status before acceptance. But after acceptance, co-author can track the status as well:


  After acceptance, the article is recorded in our tracking system, you
  can use the production reference number along with the Corresponding
  Author's name to track your paper status and add your paper to your
  personal homepage on http://www.elsevier.com/trackarticle.