Chart pages and (zoom) sliders - both horizontal and vertical possible?

Using latest stable 3.4.2.
In setting/pages/charts I can add Data-zoom and sliders. What I need is not either horizontal or vertical sliders, but both. It’s not possible to setup, but I can’t see a reason why this shouldn’t work.

Also: You have a great vertical marker line that gives you exact time in chart. Would be great to have this line also in horizontal way so that you can easily read the both, time and state/value.