I want users of a spreadsheet to be able to set the maximum value on various scroll bars. I am trying the following VBA code (see below) to enable this but it is not working. I am getting the following error:
"Run-time error '438': Object doesn't support this property or method"

Is this an Excel for Mac problem?

Sub ScrollBar21_Change()
ActiveSheet.Scrollbar21.Max = Range("R2").Value
End Sub