Right now the only way to share all the Custom Furniture from other creators used in your build is to list the links in the description. This could be made somewhat easier and more organized. Like an option to attach other creator project links with thumbnail or additional section in the project with the list of cc sets used with thumbnails and links. That will encourage builders to use cc from Curse Forge and promote the CC creators.
When you submit a file you can add required dependencies for it (other projects on CurseForge), this also means that the client will auto download these required dependencies, we're working on adding more features to it on the website soon.