So I have gone through several different solutions to try to find a way to trigger my Vivitar flashes from the OMD with no luck. I did not want to buy new flashes to make this work, since I do nothing professionally. I finally purchased the Aputure Trigmaster Plus from Amazon. About $100 to make 2 flashes work. Works perfectly. I am very happy with the purchase. They can also be used as a remote trigger for the camera. You can set up multiple flasses on different channels. Just thought I would share in case anyone was looking for a similar solution. THIS is what I bought. Also 1 extra to be able to trigger 2 flashes.