Let's start with the first question: Is there a Real Doer? In other words is the universe, and life as experienced, the result of an intelligent cause? If it's even a possibility, then we can go to the next question. If not, the next question is irrelevant.What does "the capacity for doing" with[in] a unique perspective mean? Any examples of what that would look like?
So, if yes it is possible, or even likely that there is an intelligent cause in the creation of experience, then is it not also possible that an Intelligence so vast and powerful as to create an experiential universe could also choose to perceive it from multiple unique perspectives - sort of like 2, or 2 billion, people looking at the same conditions from slightly different angles, and backgrounds, and belief structures?
And from within those perspectives, could the Source of all creation also maintain a measure of choice from those perspectives as to how to interact with life's conditions and experiences? Could it not be that these perspectives, unique (but not separate) from each other, could be the extensions of Self that we know as self, and are the mechanisms of conscious evolution and the expansion of being?
Life originates and unfolds in some manor. This is just my take until I can imagine some greater perspective that makes better sense to this limited mind. It may be that I've just had a lot of spare time on my hands from which to ponder possibilities. Anyway, it's a workable World view that brings together all that I've 'learned' in life to this point.