In ArcMap when you are creating or reshaping features and using streaming, you can group vertices together so that if you hit undo while streaming only the last 10 (or what ever number you choose) vertices will be deleted. In ArcGIS Pro there is no way to group vertices like this so if you hit undo while you are still in the process of reshaping or creating a feature, it deletes all of the vertices since you last clicked your mouse or tapped your screen to pause streaming. This is inconvenient if you were in the process of drawing a very long line or complex shape and you made a small error that you want to fix. The option to group vertices should be added to the streaming options dialogue box.