Re 1): This is a little confusing. Why would the widget be editing the transform of the component? It’s liked to a property which is a transform, but that transform property shouldn’t be affecting the transform of the component. Those should be unrelated values, yes?
Re 3): I was talking about editing the blueprint CDO (the one in the content browser). I could only tell that it wasn’t affecting the value of the transform because the visualizer which was drawing the transform wasn’t moving. (As you say, the widget itself wouldn’t be drawn in the blueprint’s viewport).