TextAlign (when MultiLine)  
When Series Marks have multiple lines of text, they can be displayed aligned to left, center or to the right edge of the Mark rectangle.

Multiple lines of text are added using the "TeeLineSeparator" constant (equivalent to character #13, carriage return)

Example:

Series1.Add(123, 'Hello' + TeeLineSeparator + 'World !');
Series1.Add(456, 'This is a' + #13 + 'multi-line mark.');

Series1.Marks.Visible:= True;