It is possible to use a resource that is stored independently from your QEX file. You can reference such a resource through a URL.
To store a resource externally:
Insert the resource (see inserting multimedia resources).
In the resources tab in the left-hand pane of screen mode, right-click the resource and select edit.
Select stored externally (referred by URL).
The path field will automatically point to the original location of the resource. If you want to specify a different location, you can enter it here, or click ... and specify a file location.
Click OK to apply your changes.