Google is now testing the customised search feature for Gmail users, who can now search across a range of Google products from a single search box. Users willing to participate in the trial should visit the updated field trial page and select Join the field trial. It's notable the trial is only available in English and for @gmail.com addresses, not available on Google Apps accounts.

In Gmail, as you begin to type into the search box, you'll instantly start seeing relevant emails from Gmail as well as results from Google Drive, Google Calendar, and more. "When you're looking for something, you should be able to find what you need quickly and easily without needing to think about where it might be, whether it's in your email or out on the public web," Google software engineer, Bram Moolenaar, said in a blog post on Monday.