Attachment Multi Upload
With this extension you will be able to upload multiple attachments at once when using a modern HTML5 browser.
Download the package and install it via admin interface -> package manager or use Znuny4OTRS-Repo. You need to restart the webserver after the installation.
No further configuration required.
For download see http://znuny.com/en/#!/addons
For this extension and for OTRS in general visit http://znuny.com. Looking forward to hear from you!
Your Znuny Team!