Performance / Graphing enhancement - Annual comparisons

When a date range in excess of 12 months selected, please give the option to show performance broken down year by year - user selecting either calendar year or financial year. There are various pages where this would be valuable in addition to the main Portfolio - such as Benchmark Analysis, Income Calendar, Holding etc. So for example we could see percentage return (capital, income or combined) throughout the course of last financial year with prior ones overlaid on top (or next to it in columns). This would also benefit from being able to choose an index and see the deviation from that benchmark (instead of it just being an additional data set). Graphing has not really been enhanced in a long time and I know there are various suggestions for improvements on here - this could be done along with those.