[WriteLog] Dueling CQ's in WriteLog?

Tue Oct 6 17:04:18 EDT 2015

I have never done single PC SO2R - always used 2 PCs before.
I am getting single PC SO2R RTTY going with my Flex 6700 with SSDR 
V1.50 and the latest version of WL. I have all apparently working but 
find I now must manually click on the desired callsign entry panels 
to switch tx focus back and forth between the two radios/bands.
GOOGLE shows me that WL had this feature years ago, but the procedure 
to get it going doesn't work now for me. Maybe I am missing something.
If WL won't do it, anybody know of any external software to control 
WL to do dueling CQ's?
Help.
Jerry W4UK