Permissions + tnt

So ive denied everyone on my server to use TNT, but i want to give tnt permissions to certain people.
I use worldguard and pex, what is the permission node to allow a certain group to use place tnt ?

Anyone? Noone ?

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

With Worldguard, go to the world and find the blacklist.txt then under:
#
# Some examples follow.
# REMEMBER: If a line has # in front, it will be ignored.
#
Put:

Code:

# Tnt
[46]
ignore-perms=<add a random permissions like: use.tnt>
on-use=deny,tell,notify,kick
message=Only <group> can use tnt...

So:

Code:

# Tnt
[46]
ignore-perms=use.tnt
on-use=deny,tell,notify,kick
message=Only Mods UP can use tnt...

 

thanks, but one problem:
if they try to place it, it says: Only donators can use TNT!
When i give them the permissions (tnt.use) then it wont say anything, just cant place

 

If you give whatever rank the permission, hey can place TNT, so any group without that permission will not be able to place it and if you have EssentialsProtect or an other plugin stopping them from placing it, remove them.