Customized symbols that you create in Symbol Editor must be based on a symbol that already exists. To establish this basis, which includes defining a symbol key, you can use the library of Isogen symbols delivered with the software, or you can import your own symbol library. After the symbol key and other properties have been defined, the next step is to draw the basic symbol shape. Features such as insulation and tapping points can also be added.
The final step in creating a custom symbol depends on the software with which it is going to be used. For project-based software tools, the custom symbol must be saved to the active project. It then becomes immediately available for editing and output on the isometric drawing. Other software tools require that the symbol definitions be stored in an ASCII symbols file.
Most 3D design tools support customized symbols in ASCII format. For information
about how to configure your software to use an ASCII file, refer to the documentation
delivered with that product.