[Elecraft] KY Command

[Rich]

I am trying to use the KY command with Writelog for RTTY contesting.  I 
have no problem setting up a Keyboard shortcut which then sends the data 
in the KY command, however I cannot find a way to stop the K3 from 
transmitting after the command sends the data in KY.  I see there is an 
RX; command to end the TX.  I also tried a SWT16 to create a press of 
the XMIT button.  I cannot find a syntax that works for combining the RX 
or SWT16 command at the end of my KY command.  I do not want to use 
another key press.  I was hoping to do it with one line of data.

The command string does not appear to work with the KY command

Neither of these formats with return to radio to RX.

KY "callsign";RX;
or
KY "callsign;SWT16;

Any thoughts?

Rich