It's tooooooo hard for non-programming background user. I understand that the prediction methods are necessary for real-time action game.
My team member was used blizzard's warcraft3 world editor many years ago, the world editor had a gui mode for those users who didn't know any programming like him. ( so that I suggest my team member to use scirra construct now)
It might have more friendly framework for multi-player game design, like warcraft3 world editor .