Another wish for Fences improvements

Now I know how to fix fences to one of two/three monitors, I have come across an annoying action. Please could this be rectified in an update to Fences 4? 

Fixing Fences in position on a monitor is great. But once 'fixed' you cannot move them - Great.

But here is where its annoying, I can still add icons/shortcuts to a Fence.  Which means if its full I have to unfreeze and resize the fence.

If I don't I just get a bar at the side of the fence that means there is an item hidden.

I know its just a small problem but moving or opening other temporary items it's possible to drop them where you did not want it, in a fence/portal

Thanks, Mike