[ ] Tileable? There may be possible to evaluate algorithmically (i.e. matching track, belt, or underground belt on same x or y value on opposite ends of opposing coordinate value, i.e. tracks at x5y10 and x5y-10) Lots of complexity here maybe
[x] Inputs marked (filter interter/constant combinator), could be detected (implemented)
This is the start of some possible heuristics for metadata: