Using pre-sorted data and renaming the factor label at the same time

I’d like to do what the title says, i.e. this: spec = data(df) * mapping(:countries => presorted, :some_value, color = :group) * visual(BarPlot, direction = :x) fg = draw(spec) while renaming the factor label to say “Country list”. Is this possible or do I need to make relabel the data frame? Thanks!