In the linear symbol editor, after editing and creating line symbols, you can click the OK button to save your work as a line symbol in the current line symbol library. However, to permanently preserve the created or edited line symbols, you need to save the current line symbol library through the following methods:

• If the current symbol library is a line symbol library in the resource collection of the workspace, you can save it by saving the workspace;
• By exporting the current line symbol library from the line symbol selector as a line symbol library file. This allows you to save the library to a file for later retrieval by loading the corresponding line symbol library file.