On Windows OS, you can right-click, select View, then Align Icons to Grid.
However, inside Fences you cannot. Meaning, they organize based on whatever settings you have selected, within the settings, but there currently is no way to align a icon to anywhere you want, within the fence itself.
Example, if I wanted Google Chrome on the bottom right hand corner of the fence, then top right corner is Recycling Bin, etc. I cannot do it, because Fences auto sorts.