This module allows you to manage groups for members of your website.
List groups and members affiliated to groups :
You have to create a group and then set the group attachement to the user..
ID of group must be between 2 and 126.
If you need to delete a group, delete all members first (from the group)
If you want to add several members in a group, separate pseudo by , (coma) in the field
NPDS - Administration manual