I'll have a look at adding additional CAT commands to FLRIG in my next play-time :-)
Great to have the multiple terminals - FLRIG shown doing its stuff with the terminal monitoring CAT commands.

As an update to my previous - if your Linux distro already has serial by ID, thanks to Hans adding meaningful names to the interface, these show up in /dev/serial/bi-id like:
usb-QRP_Labs_QMX_Transceiver-if00 -> ../../ttyACM0usb-QRP_Labs_QMX_Transceiver-if02 -> ../../ttyACM1usb-QRP_Labs_QMX_Transceiver-if08 -> ../../ttyACM2
Obviating the need for the additional udev rules in my previous - however I like the snappier, short device name :-)
73 Simon G0FOZ