hi everybody, relatively new to photography/micro 4/3rds so please bear with me -- haven't been able to find this anywhere but was wondering if you can fire a slaved flash unit (in my case a nissin di466) without having the OMD's clip-on flash using up the hotshoe... i ask because if i am able to upgrade to the OMD, i'd like to have the VF2 attached to hot shoe (i'm pretty sure i read the VF2 is compatible, right?! or am i just stark raving mad?) because i really like using a tiltable viewfinder at 90 degrees. the reason i ask is because i do a lot of nightlife photography and need to be able to fire an external flash and this works well in my EP3 set up - VF2 on, the built-in flash unit can pop up and fire with the di466 slaved to it = presto! any feedback would be greatly appreciated, thanks in advance!