Phil,
I downloaded the program last week and have been having some fun with it.
The readme file includes a list of hot keys for controlling the program.
I haven't done much except run the program in single call mode for five
minutes.  I did find that I had to use the up.down arrow keys to adjust the
rit on some of the calling stations.  Oh, you hit f1 to send your cq, and
stations will then gives their calls.  They also keep calling if you don't
respond after the initial call.

If you have any specific questions, feel free to ask.

73 Chris, w1gm