Yolov3 models not supported for Post-Trainning optimization in DL workbench?

[divdaisymuffin]

I have trained one model on yolov3, converted it into IR format, but for further optimization and trying to convert it into Int8, I used DL workbench but it says it only supports till yolov2. Please tell me How I can optimize my model trained with yolov3 or higher versions.