Hi,
The UploadAttachments provide a programming modal for management multiple files easily.
The samples contains a forum example show how to use that control to create and edit the attachments of a thread.
If do not use the UploadAttachments , developers need write many code to implement the same function.
We had considered the "upload queue" before , like your requirement.
But we haven't implemented it yet. We would implemet this feature in the next version.
Regards,
Terry