Open a subset of files simultaneously in the new editor

It would be great if in the new editor we could select the online files we want to view/open. Right now you can select at the top center the document you want open (only ONE), or you can select to open "ALL online documents".

If there were for instance 10 documents, it would be great if we could select for instance 5. Sometimes this is very useful when you need to use actions with some specific files.