I would like the plot lines in a chart to be either solid, circle dot, or square dot based upon a certain criteria specified by the user. I can successfully set the line color
Create a chart with 255 data series, run the code (and do other formatting as necessary). Then save it as a template.
Sub dd()
Dim wb As Workbook
Set wb = Application.ActiveWorkbook
Dim myChart As Chart
Set myChart = wb.Charts("Chart5")
Dim mySeries As series
For Each mySeries In myChart.SeriesCollection
mySeries.Format.Line.Weight = 1#
Next
End Sub