[Dx4win] Dumb Question

[Ron Polityka]

Hello,

I got home early today and I decided to start working on my
log and get everything in order.

 I have a dumb question.

In the lower section of the window for the log.

There is a section for DXCC - WAZ - WAS - WPX - etc.

Can anyone tell me what the letters "S", "C" and "I" mean 
when
you click on the drop down box.

I had this booked marked a while ago and now I can not find
it.

73
Ron de WB3AAL