Better State Machine Controls

When working with a state machine, depending on the complexity, it can get hard to work in. The zoom is limited, and there aren't alignment controls to move nodes or straighten things up automatically. I sometimes wish I could have multiple instances of the "Start" node, or just a way to have more things attached without needing to have them all attached to the same node. Connections tend to get really busy making it a bit more cumbersome to use.