Comment out blocks of code in the LO Basic editor not working

mike@RPI4b3:~> uname -a
Linux MikesPI 6.1.0-rpi7-rpi-v8 #1 SMP PREEMPT Debian 1:6.1.63-1+rpt1 (2023-11-24) aarch64 GNU/Linux

Version: 7.4.7.2 / LibreOffice Community
Build ID: 40(Build:2)
CPU threads: 4; OS: Linux 6.1; UI render: default; VCL: x11
Locale: en-US (C); UI: en-US
Raspbian package version: 4:7.4.7-1+rpi1+deb12u8
Calc: threaded

This page: LO basic - how to comment out blocks of code in the basic editor?
claims that Ctrl-Alt-C will comment out a block in the IDE.
Assuming that meant select a block then type Ctrl-Alt-C, I tried it only to see the selected block be replaced by ‘c’.
So my question, is this operator error? If so how to use it?
Is there some switch in configuration that needs to be thrown before it works? If so, where is that switch found?
Is this something that simply not in the version of LO I use on the Strawberry Pi and I stuck if I’m not willing/able to recompile from source?
Thanks,
Mike

or more precisely : refers to tdf#140004 :innocent:

ReleaseNotes/24.8 - The Document Foundation Wiki #Scripting