Hmmm.I'm not sure what you mean by ' middle trigger point'.

This is more along the line of what I am looking for, so I would like to know more about this type of building, as well as the auto-loading bale carrier. He pushed the bales with it and they disappeared ! I assume there is some way to extract bales as well. He then got on a tractor that had a curved 'blade' attached to the front (never seen this before). I saw a video where a person loaded up several round bales with an automatic loader, then drove to a building where double doors opened.

So does this silo only accept loose hay and straw ? That would make it of limited usefulness IMO, at least to me. When I bring a bale of hay and a bale of straw to the point on the other side (either point, actually), nothing happens. If I pull a trailer under the high pipe, it says 'Start Filling' and offers the choices of Straw or Hay (both of which are currently empty, of course).

Also, it has a door on each side that appears to be non-functional. It has a 'place here point' (the area with yellow/black stripes - not sure what the proper name for it is) on one end with a ground-level thingy that looks like a sucker or blower (no pun intended), and another 'place here point' on the far side with a high pipe like normal silos have. There is building under Placeables/Silos named Hay Loft (by Lizard). I am looking for a way to store the hay and straw bales that I am planning on making once my cattle pasture is built.

Farming simulator 14 loading hay bales