storing text data

hi,

i have requirement where in a custom transaction user will enter few lines of text.

Like

1. This data blah blah djfhdhfhdhdf

dfkjdkfjldf dfhldhfd

2. This message dklfhldfw fw fwf;wf u;wfwf

wfl wjfwjf jwl;jf;wjfjl'wf

wfj w jfwfw;

How to handle this entry at screen (dynpro) level.

As well what is the best method to store this data ?

Assuming per line the user will type no more than 40 characters.

thks