I always find it annoying to organize my staging on a craft and would like to see some improvement in this area. My main complaints are that whenever you drag an item all the other ones move around to fill up that gap, forcing you to wait a second before you can put it where you want it. Instead I think it would be better that the gap remains until you have let go of the item before everything moves as it would make organizing stages a lot quicker and less tedious. I would also like a way to group together items into one, just like how it is with symmetry, as sometimes the staging gets really long (especially with sepatrons on side boosters).
You could even make staging a whole new tab (like action groups and crew) and maybe use some color to indicate different parts of a craft (this would be especially helpful when looking at other peoples crafts to easier understand what different stages do).
