undo build que

I've done the same and it is annoying.  I try to only queue long lead items when I know I won't be playing for awhile (like overnight).  

I doubt they would change this since it's a little more complicated because the build materials are removed from storage when an item is queued.  "undo" would either have to return the receipe items (which might not fit anymore) or discard them like the Trade Center does.

I do feel that the time-based resources is both a plus and negaive for the game.  On one side it forces you to plan and manage time on a wide scale.  However the bad side is that you can easily get to the point where you just can't do *anything* until time passes.  At this time you just have to put the game down (not necessarily a bad thing 🙂).