Add an option to turn off flash on the RTL 510

I own the varia for about 2 months now. I love it and I hate it. I really hate the flash when a car is approaching. I've ran into angry car drivers and have been cut off a few times. I would REALLY like to have an option to turn it to solid mode ALWAYS. At the moment I don't feel really safe when using the light. Many people ask for this option as a group ride option. Garmin please add this option and make this light actually usefull!