Crystal Reports If Fields Blank move Record Below into it's Space

Message

     As the subject indicates have a crystal report where I want to be able to move records up if the above record is blank above.

For example:

In a credit note for example I want to display some address information lide this:

Ship To Name
Ship To Address 1
Ship To Address 2
Ship To Address 3
Ship To Address 4
City, State, Zip

Now in a perfect world if the data is filled in all the above fields there is not issue. But depending on the customer in many instances Address lines 2, 3 and 4 sometimes are not applicable hence there is no information in them.

So when the credit note prints (this assumes in this example address lines 3 and 4 are blank) I get back the following:

Ship To Name
Ship To Address 1
Ship To Address 2

City, State, Zip

There are two blank lines. What I want is:

Ship To Name
Ship To Address 1
Ship To Address 2
City, State, Zip

So in this case since the above two lines returned a blank the City, State, Zip field moved up two spaces.

Any suggestions?

Thanks in advance.