I have a Medical Grade Plastics facility at Sanctuary. I've done like 5 or 6 recipes already. I wanted a Chemical Plant at Starlight Drive In so I progressed a Community Well to a Brewery thinking that since I already had the MGP facility at Sanctuary, I'd be able to upgrade my Starlight Brewery to a Chemical Plant. But, I only get the Distillery option now that it's time to upgrade my Brewery. So, if I want a Chemical Plant at my settlement does that mean that I also have to have a Medical Grade Plastics facility at the same settlement? That doesn't seem right, but if that's the way it is then it at least solves my problem.