Calculate the width of a tab in points

/// Calculate the width of a tab in points
/// 
/// Result should be entered into Procedure->Document Settings->Default Tab Width
/// Remember to select "Points" from the units menu in the same dialog.
Function PrintTabWidthInPoints()
    string fontName   = "Anonymous Pro"
    variable fontSize = 11
    variable tabWidth = 4
 
    print FontSizeStringWidth(fontName, fontSize, 0, " ") * tabwidth
End