Hi Ed,
This would even do the same thing with file > export selected. I did just try the other method you have described and it does work but this has the issue of not having the mesh exactly where I want it in regards to the whole scene as then I have to try and replace the new generated static mesh in the exact place in the scene, delete the original BPs and then export. Is there a way to quickly convert the BPs to mesh and then replace them all in place with the singular static mesh version?