TL;DR
You should be able to set waypoints for Spidertron, probably edit them in a train schedule like manner.What
Why ?
Remote building by Spidertron is great, how about remote defending a location.For example:
(mining) outpost can be automatically defended easy enough, kilometers of rails rather not. Even if only concetrating on relevant choke points, creating a defensive station and logistic network for repairs and supplies is rather tedious.
In comes Spidertron, set to repeat a plotted course, maybe with optional delays at selected waypoints (done like the train schedule).
This would interact greatly with the expected logistic tab in 1.1 and allow for advanced (remote) manoeuvrability.