I've looked through the plugin a little bit and and I don't think it's possible, but I might be missing something. Is it possible to have a node require a minimum level of an actor? For example, so they can't purchase a node unless they're level five or higher, having level locked nodes.
I know I could have an item/token that could be required as part of the cost, and simply give the player that item upon leveling up to five, which would work but isn't quite the solution I want to use if I can avoid it.
Also I just want to say this plugin is absolutely bananas awesome and I'm excited to use this.