Stackable Mergers / Pillars for Mergers.
Pipes and belts can be layed at ground level 1 up to 4.
Mergers can only placed on the floor.
it would be nice if the mergers could get something like pillars too to set them up in height, so that the pipes and belts could be merged at level 4 instead of bringing them down to level 1.
Another idea would be to place one or more mergers over another. like stackable mergers,