Change percentages by units

Hi, there is an enormous inconvenience on all charts that displays the values on percentage and not on units.

For example, I have a Donut where I insert 3 values (2, 8, 10)

How to show on labels and Tooltips the real value and not the percentage generated by the operation that generates the % of distribution?

Another questions is about clickable elements, some charts elements are clickable like “Pie” or “heatmap”. There is not an option to set a custom CSS on when element is active. (to display a block with that class por example)