Packaging Projects that Include Only Used Art Assets

When packaging a Torque 3D project using the Toolbox are only used art assets (e.g., models etc.) included in the package or are all art assets that are stored in the project directory copied over, regardless of whether or not they are used?

My tests show the latter which seems problematic for developers with a large asset library.

Perhaps I shouldn't be storing my asset library in my project's directory at all, but rather in a separate global assets directory that is accessible to all projects.

Could someone tell me if I am missing something or if this is a feature limitation of the packaging functionality and developers need to weed out unused assets from the packaged project? Thanks.