Setting Instruments Search Path Preferences
Set global search paths for Instruments.
Open Preferences and click Search Paths.
Click the plus (+) button.
Navigate to the desired directory and click Open.
Instruments uses the paths specified in Search Paths when looking for source files and dSYMs during re-symbolication. You can add multiple search locations by clicking the plus button and selecting a new location. Select a path and click the minus (-) button to remove the path.
The screenshot shows two selected paths.