Where and how are the Graphics Symbols (used for insert unit) stored?
The graphics symbols are stored in the folder \SysCAD92\BaseFiles\Symbols. They are grouped into folders of related symbols, each containing .dxf files for each symbol. The dxf file is the actual drawing file SysCAD uses when inserting the unit when using Insert Unit dialog box. For more information on graphics symbols, please see topic Data Libraries – Graphics Database.