When selected, specifies that the symbol is being used by one or more resources. The resource or resources are listed in the Used by box.
Show read-only symbols
When selected, displays read-only resources. By default, the Resource Symbol dialog box displays only the modifiable resources in your resource script file, but with this option selected, modifiable resources appear in bold text and read-only resources appear in plain text.
Displays the resource or resources using the symbol selected in the symbols list. To move to the editor for a given resource, select the resource in the Used By box and click View Use. For more information, see Opening the Resource Editor for a Given Symbol.
Opens the New Symbol dialog box, which enables you to define the name and, if necessary, a value for a new symbolic resource identifier. For more information, see Creating New Symbols.
Opens the Change Symbol dialog box, which allows you to change the name or value of a symbol. If the symbol is for a control or resource in use, the symbol can be changed only from the corresponding resource editor. For more information, see Changing Unassigned Symbols.