Hi,
Another suggestion would be to use a single multiline textfield. Then behind this draw a horizontal line across the full width. Position this at a y-coordinate under the first line of text.
Select the line and in the Edit menu you can select Copy Multiple. This dialog allows you to specify the number of copies (the number of lines in the multiline textfield), the direction (vertical below) and the spacing (for starters, try the height of textfield/number of lines-1). May take a few attempts to get the spacing right for your font.
Hope that helps,
Niall
Assure Dynamics