[Elecraft] Powering down K3 using DXLab Commander

[David F. Reed]

I need some help figuring this out; I can do the power down from the 
Elecraft Utility (using command "*PS0;*")

In trying to get it to run from Commander, I have done the following 
(but no results); other than this, Commander is working fine.

User -defined Command Sequence:
     Note:             Power Off
     Command:    PS0;

Unfortunately, hitting Run on the edit screen, or clicking F5 button 
produces no results.

Any hints for the befuddled?

Thanks & 73 de Dave, W5SV