Hello yall. sorry if this has already been discussed - my advanced searching talents seem to be non-existent. Anyways, so i just took the plunge and bought a GH4 as well as a Metz 64, and I'm trying to figure out how I could achieve High Speed Sync with this camera. Fumbling around with the settings for over an hour with no success, I'm really hoping my buyer's remorse is just a bad dream. Can anyone help me out with setting up my GH4 so I could go do some flash photography out in the daylight? thx!