I currently have a project which follows almost the same structure of yours. But each site has the _staticAssets folder, with its own assets, but the plugin can't loop through the subdirectories.
- global/sharedAssets (ok!)
- _staticAssets (project/site specific)
- images
- logos
- banners
- etc...
the plugin can only read the _staticAssets folder (root),, but I don't want to drop all files there, without organizing them in subdirectories. How can I setup the plugin to loop through them and export properly accordingly to each site?