Steve, I don’t know if this will help with your particular scenario, but in the post below a user lays out a process that leverages Sync with External Folder and allows them to use Scrivener with a markdown editor. It seems to me they are using Scrivener as sort of a backend for structuring/storing the project in conjunction with MD tools for editing. It’s Mac Scriv and an iOS MD tool , but the idea should work just as well with Win Scriv and an Android MD tool.
[url]iCloud Sync - #186 by Merx]
Best,
Jim