I had to do something like this one that I scripted against the CMOD Database which I DO NOT BELIEVE IS SUPPORTED
I would go in to the object, and then query the object, and see which database field changed. For example, with loading/logging in an application group query before/after the system log..I would make the changes, and see which field it would impact, and go from there. It might not be as plain as day but say property X = yes, property Y = YES, property N = NO, might set the value to lets say 5...but making changes might set it to 8,3,7,1, etc..
Catch my drift?