How do I add more than one attachment to a discussion board thread?
adding attachments to discussion board thread or reply
Answer
Adding Attachments
When you create a thread in a dicussion board, you have 2 places where you can attach documents, Message and Attachments.
Message
In the Message Area, you can attach any many documents as you want by using the "Insert File" button on line 3 of the command bar.
Attachments
You can only attach one document in the Attachments part of the thread.