MyBB Community Forums

I want to merge sub forum into parent forum and delete sub forum. How can i do that thank you.

ACP > Forums and Posts > Click on the forum name which you want to to merge (e.g. Sub-Forum) > Click on the "Copy Forum" tab > then adjust the settings like this;
Source forum = Sub-Forum
Destination forum = Forum
Copy Forum Settings and Properties = Yes
Copy User Group Permissions = select all groups

Now click on "Copy Forum" button.