Until now, it's been tedious to send large or multiple attachments, as it required manual individual selection to each file. Now, if you want to send a few files from the same folder as Gmail attachments —  simply hold down the Ctrl key (Cmd on OS X) and click on each file you want to attach to your message. You can also hold down the Shift key to select a continuous list of files. You'll not only save a few mouse clicks selecting files, but you'll also see progress bars on each file as it uploads, announced Gmail Blog.