Your username here MUST MATCH your XenForo username (connected to your XF license).

    Once you have registered here, then you need to start a conversation at xenforo.com w/Bob and provide the following:
    1. Your XenForo License Validation Token
    2. The Domain Name associated with the License
    NOTE: Your account will be validated once ALL requirements are verified/met. Thank you for your patience.

Convert post to article?

Not directly, however, you can split the post out of the thread into its own thread (that is a core xf function) and then convert that thread into an article.
I clearly said FORUM Moderator Permission,not AMS permission. Core XenForo Forum Moderator Permissions towards the top of all the user group permissions. It's done that way so you can set that permission via node Permissions to limit it on a node by node basis.