Hi @mastix,
Unfortunately, things are never that easy with WordPress, not all the plugins magically recognize, know and work together ?? I am sure there are videos out there explaining how to use WP/LR Sync, but you’ll never find the answer to all your questions.
I usually recommend a developer or a technical person to help, since really everything can be done with WP/LR Sync.
But you should think of it as a plugin that simply uploads files from your Lightroom to your WordPress, as if you were dropping the files in WordPress by yourself. Nothing else happens ??
Now if you create folders and collections on the Lightroom side, they will exist virtually in WP/LR Sync (Perfect Images) on the WordPress side. But if Media Folders doesn’t know how WP/LR Sync works, it will never show those. My plugin also ship its own Explorer/Browser that will show you the hierarchy. Real Media Library is another plugin (similar to WP Media Folders) which actually handle WP/LR Sync too.
But don’t worry, WP/LR Sync will not mess what you did with WP Media Folders. It doesn’t do anything to it. WP/LR Sync only keeps its own virtual organization, which is used by the other plugins if they are willing to do it ??