I'm using ServerSigns on my server to aid in creating InGame ranks. I've set the ranks up via groupmanager. So for example, lets say my ranks are: $1 $2 $5 $10 I want to set it up so that players can't just go straight forward and buy $10 right of the back. They have to spend the money on $1 first, then $2, and so on. Anyone know how I can do this?