when using multiple scales in combination chart, allow user to categorize series and each category uses the same range and only show 1 number for each Merged

Customer wants to do followings in combination chart when using multiple scales ,

(1)  categorize series and each category shares the same range,

lets say there are 2 percentage values and 2 amount values in Y axis,

user wants to specify the 2 percentage values as one category and share the same range i.e. 0% ~ 100% other than based on actual value,

and  the 2 amount values share the same range i.e. -12345 ~ 12345 (total min ~ total max).

Current we can achieve this by manually set range(min and max) manually for each series

but after filtering we have to re-set the range. This makes it hard to use.

(2) since each category shares the same range, it would be possible to only show 1 scale value on each tick for each category rather than 1 scale value for each series hence duplicated values shown together

this would make the graph looks much simpler.