Create a table with three columns, Action, Comment and No and remove the borders.
Click in the right cell and turn on numbering.
Train the user to use the Tab key to move through the table which will add rows as required. You may want to play with the paragraph format to space the text out
I have a sample if you want it just e mail me Neil Berryman
IT Trainer
neil_berryman@btopenworld.com