Shipping build loaded landscape grass too late. How can it be hidden?

I wouldn’t call it elegant, but yes there are ways to do this with C++. I would also call it far more work and time than any of the above options for someone equally skilled in both C++ and BP. Also if you have no other C++ in your project it requires learning a new workflow permanently - hybridizing is a full commitment. If you were to go this route I’d suggest making it a plugin to avoid that, which yet again is rather advanced comparatively. If you’re not an experienced programmer I’d advise one of the above options for speed and ease. As long as they seem like they’d take, the C++ options are far more involved.

Make sure you have backups before trying any of this stuff, ESPECIALLY if you try to integrate C++. There is no way to undo that process!