As y’all know, dragging left will make a crossing-box, while dragging right will do a window box.
But, sometimes (often) you can’t drag to the left, and then it would be helpful if one could flip the functionality by holding SHIFT and drag right ( = crossing-box).
OK, the hidden secret is - hold the ALT key while dragging (prevents from dragging any objects and thus one can start a crossing-box right on top of any object without dislocating it) but it would feel more intuitive to be able to drag in the direction you want to … well, drag.
To or From
Being able to cross drag-select in the other direction is also about precision, which often is best achieved when dragging towards the extent of your desired selection rather than starting at it and dragging away from it (tends to miss at the first click if the target is small)
Keeping the ALT option as is, is of course OK as well.