@ HotRod: The OP is referring to general ECDIS training, not "ECDIS Type Specific" training. These are two different training levels defined by the IMO. I agree that OpenCPN will not be accepted by IMO for either, but as a preparation
for Type Specific training OpenCPN might help I guess. You will definately not receive your "General ECDIS" certificate just using OpenCPN I'm afraid.
@P_Dub: NemaStudio from Sailsoft can succesfully be used as own ship and AIS
target simulator when connected to any ECDIS.