The management operation of the Marker Symbol Library can be carried out through the Marker Symbol Library selector, including adding a new symbol in the symbol library, editing an existing symbol in the symbol library, changing the logical storage position of the symbol, and the like, After Completing the management operations of the symbol library in the Marker Symbol Library selector, you need to click the OK button to apply the completed management operations and close the Marker Symbol Library selector at the same time, but the results of these management operations should be saved finally. It must also be preserved by:

• If the current symbol library is a Marker Symbol Library in the resource set of the Workspace, the management result of the Marker Symbol Library can be saved by saving the Workspace;
• By exporting the current Marker Symbol Library in the Marker Symbol Library selector as a Marker Symbol Library file, The management result of the Marker Symbol Library can be saved in the Marker Symbol Library file, and then the corresponding work result can be obtained by loading the Marker Symbol Library file.