Deleting friends and groups from STEAM

I am a member of a group on stem (boss Gamers) and I would like to remove myself from that group. I also have alot of friends in my list that I would like to remove. I can't figure out how to remove them.
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=44&t=156085
Go to your control panel/ group to leave groups, and Right click on the friend you don't want any more, and go Remove this friend
Go to your control panel/ group to leave groups, and Right click on the friend you don't want any more, and go Remove this friend
Can you remove your Wife, Girlfriend, annoying Mate, next-door Neighbour and his/her crapping Cat, the Bloke parked outside with his in-car Radio delivering 110 decibels of audio power, your local Member of Parliament, etc, etc, by the same method, thereby avoiding a criminal record?.......?
Paul...G-BPLF.....
...
...
...!
Go to your control panel/ group to leave groups, and Right click on the friend you don't want any more, and go Remove this friend
Can you remove your Wife, Girlfriend, annoying Mate, next-door Neighbour and his/her crapping Cat, the Bloke parked outside with his in-car Radio delivering 110 decibels of audio power, your local Member of Parliament, etc, etc, by the same method, thereby avoiding a criminal record?.......?
Paul...G-BPLF.....
...
...
...!
Go to your control panel/ group to leave groups, and Right click on the friend you don't want any more, and go Remove this friend
Can you remove your Wife, Girlfriend, annoying Mate, next-door Neighbour and his/her crapping Cat, the Bloke parked outside with his in-car Radio delivering 110 decibels of audio power, your local Member of Parliament, etc, etc, by the same method, thereby avoiding a criminal record?.......?
Paul...G-BPLF.....
...
...
...!
If you'll take care of the bodies...
![]()