Method: Filters the post type archive permalink.
Filter Hook: Allows filtering question permalink structure.
Method: Return question permalink structure.
Filter Hook: Allow overriding of answer post type permalink.
Method: Register question CPT.
Filter Hook: Override default question CPT labels.
Filter Hook: Filter default answer labels.
Filter Hook: Filter default answer arguments.
Method: Alter question and answer CPT permalink.
Filter Hook: Allow overriding of question post type permalink