Simple request:
It would be very handy for me to be able to view my Next actions grouped by Goal (and then by priority within each goal, just like for grouped by context, or project, deadline etc).
(And the same grouping options could apply to all Box lists.)

And an old request also related to grouping:
Regrouping the Next list (and other lists) is a very, very powerful tool that I use all the time. And it is quick, too (does not require a reload of the page). But:
It would be more convenient if this regrouping could be made into a single-click operation instead of two clicks. Instead of first having to open the "Group by" menu and then selecting one of the options, there could be a number of buttons on that line; the line is not used for anything else, so there is a lot of space available.