Open multiple files from the sidebar

It would be useful to be able to select multiple files from the sidebar with the mouse or keys and open all of them (if more than one file is selected) when you press enter.

As it is now, I don't see the point in being able to select multiple files in the sidebar since when you press enter only the topmost file will be opened... also opening directories and double clicking on file names to open them like in emacs would be nice to have, but not essential as opening multiple files.