Open your 3Shape Control Panel - Download Center - (TOPIC) Download Libraries. There are a few newer FREE libraries. The only one I've installed is the "Fabulous
s", which contains 18 different libraries created from actual mouths and adapted for design use. There are a few god ones in there, and something to match just about any landscape. There is also a library from Dr. Puglishi which I have not tried yet. Though we have the CAP library, which we use for most cases.