Creating
If you want to create a group, select the character that you wish to invite into your group. Then use the button [Group] in the target window of the character. The members of your group will then be displayed on the left page. A group can consist of up to 3 players. You can invite players that are also on your channel via [$Group character name].
Leaving
To leave a group for good, click on the triangle above the group window and then on [leave].