If I am correct you are describing two different types of text.

The Single Line of text is DTEXT (Dynamic Text) it only edits a single line of text.

The other box that you are decribing is MTEXT (or Multi-Line Text).

If you explode the MTEXT you end up with the DTEXT. You can reverse this if you Use a special Lisp routine to bring multiple lines of DTEXT back into MTEXT. Hope this helps.

Oz