There are a number of BULK actions available in the sites list:
The options for updating themes and plugins listed above are covered in our Theme & Plugin Updates document.
The last two options for bulk deleting sites are dangerous and require you to enable them in your settings area.
To enable these:
This will add the two delete options to the BULK ACTIONS drop-down in the site list:
Even when this option is enabled, only WPCD admins will be able to see and use them!