A new feature is the "Sync Now" capability with Cloud Spot's LR Plugin!
With this you'll be able to import the current collection and folder architecture into your publish services. This will show the collection names and subfolders within those collections, but will not migrate images into Lightroom if they have not been previously uploaded to your CloudSpot account via the plugin.
To access this feature, right click on the CloudSpot plugin and select Edit Settings.
Proceed to log in to your Cloud Spot account and then click "Sync Now"
You should be all set! You'll now see your collections and subfolders appear in your LR publish services.
For more info and a walkthrough of CloudSpot's Lightroom plugin, check out our tutorial here!