I would love to have one more axis in calc charts (or even more than one, but one would already be great!) in addition to the main and the secondary axis, e.g. to display time divided in 1) years 2) quarters 3) months or 1) months 2) weeks 3) days.
I guess there are tons more examples where one more axis would make charts easier and more comfortable to read.
(I’m sorry if this was the wrong place to post a feature request!)