JaguarJo

...and I typed the command wrong there. /facepalm.
Should be /pex user <username> group set <groupname>

I mean the permissions that you place in the groups so like plotme.claim

Oh those. There's no required order to those either, except that if you're going to use any negated perms, it works better if you put them before the other nodes. This is because if you have a node with a wildcard on it, like essentials.* , you can't then subtract permissions from that after you've given it. You need to negate perms first and give the * perms last. Other than that one thing, the rest is random.

Here, try this one: http://pastebin.com/X21WaA7K You had forgotten to indent a couple of your inheritance lines, There was a - in one of your group names, and you had a random user group at the end of your groups list that had what looked like a playername as a permission node.

How are you typing the command in? Like, exactly how?

I think I've found your problem. Check the post, I answered it there.