How do I keep a row hidden until a button is clicked?

Ah thank you so much for your help, but I'm still having alot of trouble with this!  I think it might be because I'm not entirely familiar with LiveCycle's language.  If I sent you the file would you by any chance mind taking a look and tell me what I'm doing wrong?!

I am in the process of creating an interactive form that has a button that add rows for the user to input issues and another button to add follow-ups to those instances. There are 3 different sets of these. However, we do not want to add a delete button to all rows, to allow for accidental deletion ...