The only feature I wish would be added, is setting more than one recipe on maintain. So could have a refiner set to refine all 4 ores of tier maintaining 1000L of each ingot in the output. Crafts one til reaches goal then goes to second, third, and forth, then loops back to first. Gives you same automation without having to have 4 refineries for every tier of ore. Having more would just increase productivity.