To combine all your projects into one complete project, you start a New project with the name you want for the final project.
You add each previous project into the main project at the position of the scubber. File > Insert Project. Insert project is just below Import on the PD File Menu.
Carl312: Windows 10 64-bit 8 GB RAM,AMD Phenom II X4 965 3.4 GHz,ATI Radeon HD 5770 1GB,240GB SSD,two 1TB HDs.