Could you please clarify what you mean by "end this project"? Are you looking to finalize the design and export production files (e.g., Gerber files), or would you like to simply conclude making further modifications? Let me know so I can guide you accordingly.
Could you please clarify your request? Would you like to add a sound board module to your current project, or are you looking to initiate a separate design for a new sound board? Let me know so I can help accordingly.