To open one or more documents as Read Only, select the document(s) and click Read. This can be used for Emails and documents. It allows you to open the documents for read only without locking the document from other users for edit access. The documents open in separate tabs in your browser. This allows you to tab through the open documents.
Each document opens in a separate tab in the browser.
You can also use the Preview function to see a quick snapshot of the contents of a document in FYI in the same browser tab. Refer to Previewing a Document.