This release adds a single feature that was requested above. It is a mirror for the Download tags from shelves feature, called Upload tags as shelves.
The previous versions of this plugin added the ability to download tags into a column based on the Goodreads shelf they were on. This new feature available from the Linked book submenu allows you to perform the reverse operation, of putting the selected books on a corresponding Goodreads shelf based on the tag(s) you have applied to that book and the Shelf/Tag mappings you have put in place in the configuration dialog.
Note that you can get the same equivalent functionality already by selecting the books of interest and using the Add to shelf option. This is just an alternative that may better suit those who want to add to multiple shelves with a single click action. The books must be linked to Goodreads first. For more information refer to the help file.