It would be useful to be able to change the order of the series data in the Chart Widget. It currently sorts alphabetically but being able to drag these into the required order for display purposes would be great.
yes please!
After some playing around, I found that the sort order of of the series metrics in the Chart Widget is determined by the order of columns in the data source. So if you order the columns in your data source the Chart Widget will respect it.
That said, I agree that custom sorting without having to do this would be very nice to have.