Mutate a value in a page contentSection

I don’t know if this was a stupid question or a difficult one. I’d like to do this a Strapi way but I want to have this inline edit feature more, so I’m going off-the-rails, so to speak, to make a sidecar node/express app to handle it, update the content directly. I’ve tested that, it works fine. I have everything I need at the client to form a post. So, node. No problem, it might be nice to have on the side for whatever. It seems like Strapi is almost a oodb kind of thing, like Zope, and it wouldn’t be too much of a stretch to allow updating objects against some objectId. In Strapi I can use a Richtext component in a dozen places that I’ll have to drill-down into to manage, but it’s all really in this one place, and the client knows where that is and the developer knows, but so far I can’t find any reasonably straight forward way to update a single value in a Dynamic Zone a native Strapi way. I assume I’m missing something.