It's pretty simple. If you don't want your players derping in your spawn with horses, jumping over walls in pvp arenas, jumping over walls in spawn, or anything of the sort, then this is for you!
It's really simple. Type /jumpblock <worldguard region> <amount that jump is limited to>. Note, that it saves the data to config.yml, it is highly recommended you don't edit it, and instead use commands... If you want to make it so that you can't jump, then just set it to 0.
/jumpblock <wg region> <amount>- Set jump blocking on for <region> and set it always to <amount>.
