About Substituting Symbols in the Library

You can substitute an altered symbol for a symbol that is found in the standard library. Put the .dwg file of the altered symbol in your USER subdirectory (right-click a project name inside the Project Manager and select Settings to find the full path). The AutoCAD Electrical toolset component insertion command always looks at this directory for the requested symbol before going to the selected symbol library.

Note: AutoCAD Electrical toolset uses regular AutoCAD blocks. If you insert a block from one library and then try to insert the same block name from a different library, you get a copy of the original version of the block. Use the Swap/Update Block command in AutoCAD Electrical toolset to make the change.