Files and Files Explorer widgets currently have links with target="_blank".
As a result, if the user clicks on a filename, the browser opens a new tab, redirectes the user to the community holding the file and then opens the Docs Viewer. That takes a lot of time and the user looses his context. If closing the file viewer, the user is left with a view of all community files, which can be confusing.
So please, add an option to open the file viewer right on the Engagement Center page. That would be much faster and browsing files is much easier for users.