[Elecraft] Looking for CAT-Command

[Martin]

Elecrafters,
my Logging-Program - UCX-Log - is able to send CAT-Commands to the K3 by 
tapping a F-Key. This is great for contesting etc.
My intention is to remote control M1-M4 .
When i send swt16;swt21; , M1 is played.
In SSB the K3 switches back to receive after the message.
In cw it gets stuck in transmit until you tap a key on the front panel.
Adding swt16; to the command results in a short dit when in cw or no 
transmit at all in ssb.

Is there a workaround?
Did i miss something?

-- 

73, Martin DM4iM