When I move to Unity Pro from Free, how do I add the Pro assets to a project?

[system]

How do I add in pro assets (or any new assets) to an existing project that wasn't created with the assets originally? In the case of the Free version, it might be the toon shaders. In the case of the pro version, it would be post-processing image effects.

Thanks! nXain

[Dreamora]

you import its package through the import package functionality and navigating to the unity install folder on your system