Defines the symbol icon that you see in the Windows Explorer or the Symbol Explorer.
Automatic
Uses the elements and objects in the current document window to create the symbol. This is handy if you want to see what the symbol looks like without opening it.
Use Active Sheet
Allows you to save the latest changes in the symbol document to the symbol icon.
Use Bitmaps
Allows you to select a bitmap document to display as the symbol icon. You might want to assign the same icon to a group of symbols that you are creating. For example, you can assign your company logo to an entire library of symbols.
Small
Displays a small icon.
Large
Displays a large icon.
To use this functionality, you must install the Symbol Authoring option.