Unfortunately, there is no way to trigger an automated CSV file export to your drive or shared drive. This is actually a Flash Player security mechanism introduced with early versions of Flash Player to prevent malicious Flash presentations from automatically data or code onto your computer without your knowledge.
In attempting several workarounds we have been unable to determine a path where it is possible to automate saving CSV files to your desktop. The standard Adobe recommendation is to use a framework like AIR which is incompatible with SAP Dashboards.