It sounds like you are looking for (EPLAN macro libraries) for use in EPLAN.
Siemens provides several official channels for downloading these engineering assets: SiePortal (formerly Industry Mall/Support): siemens eplan macros edz download
Macros in EPLAN play a crucial role in enhancing productivity and standardization. A macro is essentially a pre-defined block of content that can be inserted into a project. This content can range from simple symbols to complex assemblies of devices and connections. By using macros, engineers can save time, ensure consistency across projects, and simplify the design process. It sounds like you are looking for (EPLAN