How to add "Line Break" in Pick list Field in Quotes / Sales Orders / Invoices ???

How to add "Line Break" in Pick list Field in Quotes / Sales Orders / Invoices ???

Hi

I need to add line breaks within several Pick list items in my Quotes / Sales Orders / Invoices ???

I have tried using the regular html codes for line breaks but nothing works. All I get is one line of text for each Pick list item

I have tried all of these:
  1. /n /r <br /> <br> <br/>

Hope someone can help