Limit: "Regeneration while automatic, can be effected via conscious thought. (Focus on getting better)". How can this ("focus on getting better") be used to accelerate regeneration (what does the user have to do)? Can you give an example?
It’s theoretically possible(depending on a writer or the character) that a regenerator could accelerate their healing through focus, mediation, etc. or slow it down the same way
Regenerative healing factor can be both passive and consciously done. So Wolverine mainly uses it for passive purposes. Whereas others can focus on a particular area of their body with the most damage and consciously quicken the healing process there while other damage is done passively.
A sub type of this could be called Focused Regenerative Healing Factor.