Sliding text into a dynamic text field with AS

Guys,
i don’t remember where i saw this otherwise i would’ve given you a link to see what i mean.

There was a chat room where once you type something in and send it, instead of just appearing in the main window, the whole text in that window moves up and whatever you typed in moves in from the bottom or from the side i don’t remember.

Do any of you know how to control text in a dynamic text field like that?

Thanks for any help,
Artom

:battery: :battery: