You can customize ToolKit™ by creating your own Personal menu.  This menu shows up when you hold down the option key while the cursor is inside the ToolKit™ palette window.

Simply create a TEXT resource in your Home stack called "Personal Menu" containing the items you want in the menu.  When an item is selected from the Personal Menu ToolKit™ attempts to call an "on PersonalMenu msg" handler where the name of the menu item selected is passed as the msg.  Just write an "on PersonalMenu msg" handler in the stack script of your Home stack to process the selections.