I think this particular feature may have been overlooked since it is less commonly used as you are describing (and to make the action of creating  a fence more apparent). I will report this to the Fences developers, however.

Mike

Without Fences, when you use the right-click/drag to select multiple items, it brings up the right-click context menu right away.  With Fences, it only brings up the 'Create new Fence' option.  He could left-click/drag to select the items, then click one of them to get the correct context menu, but that's an extra step.  It's a small difference, but if you're used to doing something a certain way, a small change can throw you off.