Could we also have dining options in rates setup, so that guests (and staff within comander) can choose from options like with / without breakfast / full board / half board to select rates? (of course with nice labels attached 😉 )

For us, or in most city settings I believe, the major rate differentiations are non-ref vs. free cancellation and with vs. without breakfast ? Right?

Also, the rate group system could be facilitated to achieve this. Once cancellation policies can be set at rate level, Rate Groups could be used to group board options together (all rates with breakfast, but with differen cancellation policies within on rate group). Furthermore, that would require to be able to show more than the cheapest rate within each rate group in the booking engine - at least optionally.