It would be really helpful to be able to specify zones where a TE cannot travel at its full speed. I know this can be done with AGV networks and Network Nodes, but when setting up a new area it can take a lot of extra time re-configuring those networks.
What I imagine is being able to drag out square (similar to the Barriers) where when the TE enters that square the speed is modified. This way warehouse aisles can have a lower speed than the main travel aisles.