Creating duplicate pages in a PDF Form

I am currently using Acrobat 9Pro and creating a form. the individuals completing the form will need to complete page 1 with basic information, and give me a list of account numbers. They will then need to answer a series of questions for each account. They could have 1-5 accounts. I would like to have just 1 page show up for them to complete and then have them hit a button to add a new blank sheet, if they have multiple accounts. Is this possible?
 
Also, is there any way to make an if - them scenerio? If they check the box then they answer the questions in Section 2. If they do not check the box, then they answer Section 3?