Sorry to hear you are having issues. From your video, you're trying to move that icon to stay at the bottom row, yes? If that is the case, no, that cannot be done. Fences, currently, have no option to disable "auto arrange". It always arranging icons starting from the top left etc. There were lots of feature request made by others on this. But, so far no news on this one yet.
Stardock Community Assistant.