In 2020 the tooltips seem to work better than 2024, and should show you the prime status and inertia starter speed (must be 12,000-16,000 RPM). I could also add this to the tablet but it's positioned such that it's hard to see while interacting with the starter and prime switches; I've no idea how to make it a movable tablet but it must be possible.
Incidentally, I want to get the props animating better during startup, both for successful and failed starts, and also on shutdown. It's on the to-do list.
Work has started on V19: the core functionality of auto-lean / auto-rich / emergency-full mixture control is implemented; probably needs some fine tuning after flight tests but that can come later.
Maybe now is a good time to mention some excellent news: I got kind permission from the author of the excellent Duckworks DC-3 mod, to adapt and reuse elements of Duckworks code in this freeware "B24 Repack" project. The fuel mixture will be the first of several new features I can port from DC-3 to B-24. This isn't a simple copy-paste but definitely opens up some good possibilites for more system depth in the B24.