It’s already possible to change the position so it might be a bit overkill to have a filter for that. But to either have a filter for the priority or possibility even to choose it in the administration where you can choose the position today, probably would not hurt.
I’m leaning towards hard coding in apply_filters('afc_meta_box_priority', $priority) for now or use the $wp_meta_boxes array to reorder the meta boxes.
Anyway thanks for all your help and again for an awesome plugin!
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