Ok, this sounds counterintuitive, but I got mine to work by enabling sidelights as DRLs, then deactivating 'Daytime Running Lights 1/2' and 'Daytime Running Lights 2/2'
Now my DRLs turn on with the ignition, and off with headlights (dipped or high beam). Perfect.
Now, let's get out of here before the E89 boys catch us and force us to swear allegiance to the tin-top club...