Excellent indeed!
Followed one of the solutions in stackexchange:
Specifically:
found the rules file on my system:
/usr/lib/udev/rules.d/85-brltty.rules
changed permissions to allow editing:
cd to rules.d
$ sudo chmod o+w 85-brltty.rules
found line with my device ID: 1a86
ENV{PRODUCT}=="1a86/7523/*", ENV{BRLTTY_BRAILLE_DRIVER}="bm", GOTO="brltty_usb_run"
commented it out with:
# ENV{PRODUCT}== ...
restarted computer
SUCCESS!
"port" is now showing in Tools, with /dev/ttyUSB0
running out of time this morning so must postpone further testing,
but for now it looks like the problem is solved.
THANKS SO MUCH ptillisch.