I see. I had gotten as far as selecting the appropriate layer, but missed the “drag and select all of the spline handles” step. Is there anything that you CAN do to a spline when it is selected, but the handles are not? If not, it would be a useful enhancement to select all of the handles when selecting the spline…
Well, individual handles can be moved without first selecting them, so if the user is just editing the shape of the spline itself (rather than moving/scaling it as a whole) then having all handles selected by default would get in the way.
What would be useful would be to have one tool for shape editing and another for moving/scaling/rotating shapes as a whole (ie. like Inkscape).