Filling lines in contact card? (ex. Questions & answers about a certain customer)

Dear all,

currently my company is working with the old version of Microsoft NAV, but recently our company have bought Microsoft NAV 2009 recently. I am the person responsible for applying the new NAV in our company (IT project Manger).

I have installed Microsoft NAV 2009 R2 client in my computer. Right now I am using crones database, and I am discover NAV step by step.

my question is when I create a new contact card, I have some fields called lines!

How can I fill them? because when I click on them I cant open them or fill them!

Best regards,