The dialog also opens when you click in the Show Usages pop-up window which lists all the occurrences of the symbol at caret.
Use this dialog to configure the search procedure and scope when looking for occurrences of the following data:
- Fields, variables and parameters
- Classes, tags, attributes, and references in the HTML, XML, and CSS files
- Symbols at caret.
The search results are displayed in the Find tool window.