How do I setup CDX online discussion forums
Navigate to the course page where you would like to place the discussion forum. Then, click on the Actions button at the top of the page and select Turn editing on.
Scroll to the bottom of the section in which you want to add the forum and click the Add an activity or resource option.
Select the Forum option in the resulting popup window and proceed to name the forum and choose the desired settings to manage it.
When satisfied with your selections, scroll down and click the Save and display button.