Is it possible to have Multi Line Text within a text field so that within in one text field i can have more then one line.
A Text Field component can only have one line of text. However, if you use a Text Area component, you can have as many lines as you want. While entering text into it, you can press enter to get a new line.
If you are talking about using a Label component, those accept html. ie:<html>Line 1<br>Line 2