I enlarged the bottom picture in my post above. It appears that I cut the activation track (it appears to be missing the left and right end on the platform side, BUT I had forgotten that MTH made a track where the side removed. (That picture might be from my 2012 Christmas layout, the last time I believe I put up a garden! I tend to forget things over the years.) Perhaps that is one of their tracks, if so I did not take the time to beautify it as shown in the link posted for the solution, by cutting it up. I am pretty sure I had to bend the outside flange on one of my platforms one year, again, memory.
There are 3 controllers at the edge of my board in that picture. If I recall, the left runs the cattle loader, the middle runs the coal loader across from the platform, and the right activates the milk car track. I had the accessories so the guests could activate each one from the side of the board.
Maybe one year I will put up another Christmas garden, but age every year is starting to take its toll. I am 75 this, and just do not have the ambition, but I do like to come back here to the site every once in a blue moon. Always good to see the new blood in the hobby!
Not that it really matters, but here is a pict of one of my layouts. Not the one above, in this one the milk platform is tube track with MTH transition pieces.
I put it up in about 2 weeks, a month before Christmas, as I recall. I liked a challenge each year, back then, trains are controlled by DCS. Trains are not on the track in this pict. Greg