When specifying a symbol from the library for use with a Generator object or command, refer to the symbol by the name assigned to it in the library. If the symbol is contained within a folder in the library, refer to it by folder name/symbol name. For example:
If a symbol named red_ball is not contained within a folder in the library, refer to it as simply red_ball.
If a symbol named red_ball is within a folder named Red_Objects, refer to the symbol as Red_Objects/red_ball.
If a symbol named red_ball is stored within the Balls subfolder inside the Red_Objects folder, refer to the symbol starting within its parent folder and on through to its name: Red_Objects/Balls/red_ball.
See Processing templates with Generator overview for information about specifying symbols in external media.