Help with linking sheets together.

I have linked information between sheets in the same workbook. I was wondering if anyone knows of a way to have the information from sheet A appear into sheet B but in a new line. It is kind of hard to explain. I'll attach pictures to make it easier. Screen Shot 2013-01-02 at 10.47.55 AM.png This image shows the sheet the information is going to. As you can see i already have it linked using 'Trailer Summary '!F5 for example. Screen Shot 2013-01-02 at 10.48.09 AM.png What i woud like to do is be able to type in F5 on the Trailer Summary sheet and have it come out in the other sheet as a new line without deleting the information already stored there. Is this at all possible?

Thanks

Trailer %2F Dock Control.xlsx

This is an example of a sheet.

I would like to be able to type in F5 on 'Trailer Summary' and have it come out in a new line on '53902' below row 4.