Help with Adding Trendline to Line Chart

Hello, We have been using Superset for about a year now and previously had been using Tableau. Everything with this platform has been great, however we've still been unable to find a way to add trendlines to line charts. I know there is a "Big Number with Trendline" chart type option, but that's

Time Range Parameter in Metric?

Hello! We are trying to create a dashboard where the chart metrics reference the to/from TIME RANGE specified in the filter box within a NESTED select statement. The parameters '{{from_dttm}}' and '{{to_dttm}}' work in the virtual SQL dataset, but not within the nested select statement metric.