config.yml - any player who does not have a group specified will default to the group specified here.
Code:

default: groupname

groups/worldname.yml
Code:

groupname:
- node.node.node
- node.node.node
- node.node.node
- node.node.node
- node.node.node
groupname2:
- node.node.node
- node.node.node
- node.node.node
- node.node.node
- node.node.node

players/worldname.yml
Code:

playername: groupname
playername2: groupname
playername3: groupname
playername4: groupname2

Ideas for commands:

    * /setgroup playername worldname groupname - sets a player to a group
    * /addnode worldname groupname node.node.node - adds a node to a group
    * /rmnode worldname groupname node.node.node - removes a node from a group
    * /lsnode worldname groupname - lists all the nodes of a group

Defaults:

    * If there is no players/worldname.yml and no groups/worldname.yml then the plugin will default to defaultGroups.yml and defaultPlayers.yml
    * This can be used in preference over any group/world specific groups if you wish global groups, or if you want per-world groups and permissions, simply setup the individual files in the defined format.

Coming soon:

    * Tags defined by permission nodes
    * bPermissions -> Permissions 2.7 bridge