Sorry for the late reply. My family has been recovering from influenza A.
There is another thread here by HKJ that talks about TestController and the Gyrfalcon S8000.
HKJ mentioned that you can right-click inside the Address field to find the address instead of typing it:
From my perspective:
61 is an early version of simple mode.
62 is a fork with simple mode + manual current selection.
63 is a fork with simple mode + automatic current selection.