Just curious as a regular Reason user, the Sonar Preferences dialog looks like a foreign language lesson.  Is there anyplace where these options might be explained in detail so that I know what I am fiddling with, or why I might (or might not) want to make changes - especially the MIDI stuff?

The INI files are explained here -> http://www.cakewalk.com/Documentation?product=SONAR&language=3&help=INI_Files.1.html
 
There is also this -> https://www.cakewalk.com/Documentation?product=SONAR&language=3&help=Dialogs2.050.html
 
MIDI specific info -> https://www.cakewalk.com/Documentation?product=SONAR&language=3&help=INI_Files.5.html
 
You can always ask here for recommendations on specific settings too.

BobF
The INI files are explained here -> http://www.cakewalk.com/Documentation?product=SONAR&language=3&help=INI_Files.1.html
 
There is also this -> https://www.cakewalk.com/Documentation?product=SONAR&language=3&help=Dialogs2.050.html
 
MIDI specific info -> https://www.cakewalk.com/Documentation?product=SONAR&language=3&help=INI_Files.5.html
 
You can always ask here for recommendations on specific settings too.

That's what I was seeking, thanks!