BarChartView customization Questions

Hello. When implementing the schedule, I had the following questions:
1. How can I turn off the selection when clicking on a graph value?
2. How can you set the width of the chart element and the spacing between the chart elements?
3. How to disable alternation in the names of chart elements? Now they are displayed not under each element, but i need show to each element. (names of the month in Russian)
4. How can you round off the top edges of a chart element?
5. I figured out how to make a different background color for some elements, but how can I add a stroke for the necessary elements, but not for all?

Thank you very much for your help.