Placing a soft return in a memo field

[muppetmad]

My form has a memo field. I can type in the filed and use Shift+ Enter to move the cursor to the next line or a new paragraph without leaving the field. The user often enters the same data in the filed but not always. I want to be able to give her a button that fills in the memo field with the most frequently used paragraph. I have created my button and can fill in the memo filed when it is clicked. However, it does not put in the soft return. How can I add the soft return to my code so that she does not have to edit the data to add the returns.