If you cannot afford the ~$495/year SSA fee, do not despair. Here is how to build a massive library for free:
In the Library Browser, ensure is enabled. Items with a globe icon are available for download. Chief Architect Ssa Library-- Download Free
Filter by your specific software version (e.g., Premier X15) to ensure compatibility. If you cannot afford the ~$495/year SSA fee, do not despair
On the right side of your screen, click the Library Browser icon (it looks like a stack of books). Chief Architect Ssa Library-- Download Free