You can use the X-Ref Filter dialog to set the scope of the query. The dialog is non-modal and can be opened by doing the following:choose View > Filter... or press the Filter... button: Elements Description Filter Allows you to filter the graph with a regular++++ expression. The filter settings are used for the next query. For more information about regular expressions, see Regular Expressions in SNiFF+. Function Bodies Defines whether function bodies are to be included in queries. If enabled, the function body cross reference information is loaded by SNiFF+. Note that cross reference tables are loaded incrementally on demand in order to save memory. Function body cross reference information is not needed for component or interface cross referencing. All Overloaded Specifies whether each member of a set of overloaded items (methods or functions) should be referenced during the next query. If enabled, all overloaded items are taken into consideration. If disabled, only one specific overloaded item is referenced. Read (r) Specifies whether read accesses to variables should be included in the next query. If disabled, no read accesses to variables will be shown. Write (w) Specifies whether write accesses to variables should be included in the next query. If disabled, no write accesses to variables will be shown. Components (H) Defines whether class component (has-a) relationships should be included in the next query. If enabled, component relationships will also be shown. Interface (PR) Defines whether class interface usage should be included in the next query. If enabled, Parameter and Return types will also be shown. Save Default Saves your current Filter Settings as the default setting. Note that if you work in projects with other languages, your settings will be incorrect. Load Default Loads the saved default setting. Note that if you work in projects with other languages, your settings will be incorrect. Types Specifies which types are to be included in the next query. Pressing All enables all check boxes; pressing None disables all check boxes. Refers-To Starts a Refers-to query. Referred-By Referred-by query. Close Closes the X-Ref Filter dialog.