Hmmm....I though the spine pose was pretty recognizable. I think the colon : can not be used in the name of a relationship/pose. Adding numbers to the name will just make it longer
Why is it strange that 3 is FK? It's grouped with the squetch settings. I'm not sure if 4 is actually FK, it just doesn't have the hips lower controller (the nulls do what the hips lower controller does). David would have to clarify that one.
Repositioning the setups of spine pose would mean a total redo of the pose. Constraints work in conjunction with the ON/OFF positions of the slider, which was a major headache to get working correctly. It would also mean redoing the switch capabilities, which was also a royal pain. The auto hips pose would also need to be redone as well. Each setup, except FK, has a different setup. The pose works in conjunction with the spine pose, so when auto hips is ON, it will go to the correct auto hips slider position (it's automatic), all you need to do is turn it ON and Off. But you must turn it ON in FK spine (0 on the spine pose).