I'm trying to add thick borderlines on my spreadsheet using conditional
formatting. But the "thick" option is not available. I observed the
code using the macro recorder which produced

Sub ConditionalFormat1()

Range("A5:O428").Select
Selection.FormatConditions.Delete
Selection.FormatConditions.Add Type:=xlExpression,
Formula1:="=$A5<>$A6"
With Selection.FormatConditions(1).Borders(xlBottom)
.LineStyle = xlContinuous
.Weight = xlThin
.ColorIndex = 3
End With
End Sub

.... I thought I could chagne the weight to xlMedium, but it didn't
work. Is there another option?