Universal Personas

We'd love the ability to use all product &/or user personas with any brand persona. For example, we have 8 niche sites, each with unique voices. But ALL are part of one larger brand, marketing the same visionary mission. Therefore it would be super helpful if each user or product persona was an available target for each of the niche brands or sites, without having to create new products or personas for each branded niche. @tyeweldon