Hello,
I'm searching for the topic and found the post https://moodle.org/mod/forum/discuss.php?d=236629
I'm really surprised that this should not work. So I looked at the source code of
admin/tool/uploaduser/index.php
and yes - not implemented but I need it.
So I modified this file slightly and added one language string in lang/en/cohort.php
In my version you add a double - to the idnumber of the group in e.g. cohort1 field is set to
--SchuelerGTA and the user will be removed if he is a member of the group SchuelerGTA.
If anybody is interested send me a notice. I do it for 3.1.6 (Build: 20170508).
Obviously, you do it on your on risk, but there should be no sideeffects. If user is removed from the cohort he is removed from all courses where he is enrolled via this cohort.
Greetings
Karsten
