Users with PPM Pro administrative privileges can assign a scoring profile to a request category. That profile will be used for any requests with that category.
For requests, the scoring profile is assigned to the request category, meaning that any requests created with this category will use this scoring profile.
If scoring is unlocked, you can change the profile currently assigned to a request type. However, the scores from the original profile will be removed from the Scoring section. If you decide to reassign a previously-scored profile, those scores will be reinstated in the Scoring section.
To change the scoring profile assigned to a request category, follow the steps above for setting the profile, and simply select a different profile from the Scoring Profile drop-down list.