New widget "KPI Metric > Evolution over the period" for getting a graph of any metric #15235

The "KPI Metric" Widget is great and valuable. It shows the KPI metric value for the selected date as well as the sparkline showing the last 30 days/weeks/months/etc. But often as a user I also want to see more clearly the evolution of the KPI metric value over eg. the last 30 days. While the sparkline gives me a quick view, it's not as obvious as if there was a way to also see the evolution graph of this KPI metric in the widget.

It would be very valuable to have a new "KPI Metric > Evolution over the period" widget that shows the evolution graph as well as the sparkline+kpi metric below. (Similar to how we have Forms>Evolution over the period, or Media>Evolution over the period, or Goals>Overview, or Ecommerce>Overview).

Maybe it could be done as part of another issue. if #8096 is implemented in a way that works across all widgets and reports, then maybe the "KPI Metric" widget would be able to show a graph within automatically.

(edited)

Note: It is possible to do this already using Custom Reports