[Elecraft] Inhibit Antenna Switching on KX3 - KXPA100

[Dauer, Edward]

Way back when, I came across instructions for preventing the ANT button on a KX3 driving a KXPA100 from changing antennas.  It was useful then, to avoid a no-antenna condition in case the op forgot what was connected to what.  I would now like to unblock it, so that the KXPA output can be switched from the KX3 panel, but I can no longer find that instruction.  A word search of the Manual produced nothing, and the Menu titles seem likewise mute on the subject.  The KXPA Utility allows an antenna selection but I don’t see this configuration option.  Anyone know how?  Tnx,

Ted, KN1CBR