Hello,
When a spliter has settings, like "input_priority" and/or "output_priority", the mod should also flip the properties from left <-> right (depending of the splitter's "direction" and the flip axe)
for a vertical axe flip (left/right) the "entities" with "name" equal to "splitter", "fast-splitter" or "express-splitter"
with "direction" 0 or 4 should toggle the "input_priority" and "output_priority" fields (if exists).
for a horizontal axe flip (up/down) the "entities" with "name" equal to "splitter", "fast-splitter" or "express-splitter"
with "direction" 2 or 6 should toggle the "input_priority" and "output_priority" fields (if exists).
Let me know what do you think about this suggestion.