I have a current project that is still in development with know issues to fix. I want to start a revised schematic with the known needed changes. I want to maintain access to the current revision of the schematic while development continues. What is the best way to manage multiple versions of the same project/schematic. Should I make in new board inside the same project or start a new project for the same board? What are some best practices used out there? I don't have DxManager.