Let me start by saying that I really hate decorating mode. I constantly move things by accident and it changes the behavior of dragging stacks. Did I mention that I hate it? So here's my suggestion: allow moving decorations when not in decoration mode using by control+drag. In other words, if I want to pick up a placed decoration when not in decoration mode, I would hold down the control key and drag the decoration (similar to using the control key to drag a single item from a stack). I'm not suggesting changing decoration mode in any way, only adding the control key usage when not in decoration mode. If this were implemented, I would remove the toggle decoration mode hotkey binding and never use that mode again. Happiness would ensue. Please consider it.