The backpack has made a huge difference for app development.
One thing I always find I need is the ability to keep related blocks together either for an arrangement or routine
Don't know if it is possible but it would be great if one could draw bounding rectangles on the blocks editor, in order that one could keep related blocks together, and even better if they could be rearranged in there with existing tools, and even better than that if they had labelling functionality!
Example:
