Version 5.1 includes a new implementation of live preview tracking which now even supports machines connected over WiFi. It provides some very useful insights into the current build progress without having to manually go look inside the machine.
Glad our team was able to bring back this useful feature. You can read about all of the other improvements in V5.1 here:
https://www.simplify3d.com/products/sim ... rsion-5-1/