Add Context Menu Item

Follow the below steps to add the 'Insert Signature' option in the context menu component.

1. Access the default configuration.

   // Configure Workbook and Worksheet
   var spread = new GC.Spread.Sheets.Workbook("ss");
   var activeSheet = spread.getActiveSheet();
   
   // Access the default config
   var config = GC.Spread.Sheets.Designer.DefaultConfig;

2. Add the "Insert Signature" option in the contextMenu tag and set it into commandMap in your project.

   // Add context menu item in config context menu
   if (config && config.contextMenu) {
       config.contextMenu.unshift("insertSignatureMenu");
   }
   
   // Create command for the new context menu item
   config.commandMap = {
       "insertSignatureMenu": {
           text: "Insert Signature",
           commandName: "insertSignatureMenu",
           visibleContext: "ClickRowHeader",
   
           // execute InsertSignature, following just a simple demo code snippet
           execute: () => {
               console.log("Insert Signature");
           }   
       }
   }

3. Initialize the designer instance by passing the config parameter for customizable configuration.

   // Initialize the designer instance
   var designer = new GC.Spread.Sheets.Designer.Designer(document.getElementById("designerHost"), config, spread);

The below output will be generated: