Packet Log Dynamixel Wizard while using GUI

I’d like to see the packets that using the gui sends. However, the two windows have mutually exclusive control of the COM port. How do I use the dynamixel wizard 2.0 gui and see the packets sent by it?

Not sure if I understand your issue correctly. In a way the user can only see the make-up of the packet after sending it to the DXL. Just click on the packet that you are interested inside the packet log (see web link below):