Okay, so, I actually tried and... it's lacking from personalization. I'd thought that I'd find a config.yml or something to edit the formulas of exp to the plugin "auto-manage" player leveling... but I think that manually it's the only way for now.
Don't misunderstand me, the plugin is simple and good, but I'd love to see a configuration file to see how we can do to this be automatic and not another admin task to manually level players. Also, I keep saying that I'd love to see the attributes modifications of damage or life.
I really like the concept, and I'd love if for each level the users can gain some player modifications, like, +0.1 damage or +1 heart per level. If you can do that, I'm willing even to pay for that :)