When I select multiple objects and want to drag them, I have to start dragging from one of the objects, and starting the drag from “empty” space that looks like it’s part of the selected area, will deselect the objects and if there’s another, not selected object, under there then it will drag that object.
I find it very non-intuitive, and I’m constantly forgetting it and dragging wrong objects. Sometimes it’s not clear am I clicking on an selected object or empty space. If I have multiple small objects far from each other, it can be difficult to click the one small object instead of the huge empty space. Also, starting from one selected object feels like I’m dragging that one, and not all of them.
Making them a symbol is not feasible, because I’m not using this for ready and finished sets of objects, but instead in exploring phase: I try different kind of groupings in different kind of contexts and duplicate the view in some extent and modify some elements to compare them. So what I’m dragging is different every time and I need to do this for every mockup in different way.