I think that the title is pretty much self explanatory, but it would be awesome if legend labels could be toggled in visibility, so that in a multi signal scenario, when toggling the signal's visibility, one could also toggle its lable visibility

The utilization could be of the type in a multi signal scenario with a certain visibility condition (suppose that we need to toggle visibility off):

private LegendItem[] signalLegendItem = new LegendItem[8];
private readonly ScottPlot.Plottables.SignalXY[] signal= new SignalXY[8];

for (int i=0; i<8; i++)
{
      if (visibilityConditionIsMet)
          {
               signalLegendItem.IsVisible=false; 
               signal.IsVisible=false;
          {
}

NOTE:
In here i've used a SignalXy but it applies to any type of signal