How to continue text to next line.

Working on making a customer's work order form fillable as PDF. There are a few cases like this where, if needed, text should continue on the line below. I currently have multiple fields with a keystroke script setup to go to next field if full. This, however, will cut words off at the end of a line. Is there a way to carry the unfinished word to the next field, or another script or solution to make this better? Current script example:

// Move to next field when this one is full

if (event.fieldFull) {

getField("Customer Name 2").setFocus();

}