It's nice that the splitter/merger can snap to an existing conveyor but it would be nice if:
1 - Holding Ctrl while snapping to conveyor will snap to grid if with in X blocks of a foundation or snap to a universal grid space if not within X blocks. I think the normal blue line distance would be sufficient.
2 - splitter/mergers could snap to, in priority to a conveyor end, directly to another machine with no belt or another surface line a foundation or other mountable surface.
3 - they could be mounted on top of other flat components like other splitter/merger or storage container.
4 - clearance around, above and below a splitter/merger would allow belts to clip or reduce the collision area so stacked splitter/mergers would allow belts above to pass unhindered. This also causes issue with placing it on a foundation, deleting foundation and then trying to re-apply it. Can't do it.
Thanks for your consideration.