Miss the old style Manage Content and Structure feature? No? Well this post is just not for you. Now if you said yes then you are in luck. It’s still available in Office 365, just not a menu option.
To use the old “Manage Content and Structure”, add this at the end of the site: /_layouts/sitemanager.aspx
Only caveat is that you must be a Site Collection Administrator for this particular site in order to be able to use this control
This really does come in handy if you like being able to use the GUI to move items across the sites.