public void setNodes(String group, List<String> nodes) {
Group gr = getGroup(group);
Set<Permission> pr = gr.getPermissions();
pr.clear();
pr.addAll(Permission.loadFromString(nodes));
gr.calculateEffectivePermissions();
save();
gr.clearValues();
log(parse(nodes) + " set to group:" + group);
MCMA.getDebugger().log(getWorld().getName());
setupPlayers();